DRA429-5205

PART NUMBER CONVERSION

ROSAN – LN – DOD, SLIMSERT INSERT, METRIC

ROSAN PART NUMBER	LN PART NUMBER	DOD PART NUMBER
SRM0508A0024	–	D63274/1-6C
SRM0610A0024	–	D63274/1-10C
SRM0710A0024	–
SRM0812A0024	–	D63274/1-14C
SRM0810A0024	–
SRM1015A0024	–	D63274/1-18C
SRM1012A0024	–
SRM1215A0024	–
SRM1212A0024	–	D63274/1-22C
SRM1415A0024	–	D63274/1-26C

ROSAN PART NUMBER	LN PART NUMBER	DOD PART NUMBER
SRM0305B0024	–	D63274/1-2C
SRM0407B0024	–	D63274/1-4C
SRM0508B0024	–	–
SRM0610B0024	–	–
SRM0710B0024	–	–
SRM0812B0024	–	–
SRM0810B0024	–	–
SRM1015B0024	–	–
SRM1012B0024	–	–
SRM1215B0024	–	–
SRM1212B0024	–	–
SRM1415B0024	–	–

ROSAN PART NUMBER	LN PART NUMBER	DOD PART NUMBER
SRM0508AL0024	LN29534-03	D63274/1-5CL
SRM0610AL0024	LN29534-04	D63274/1-9CL
SRM0710AL0024	LN29534-05	–
SRM0812AL0024	LN29534-06	D63274/1-13CL
SRM0810AL0024	LN29534-07	–
SRM1015AL0024	LN29534-08	D63274/1-17CL
SRM1012AL0024	LN29534-09	–
SRM1215AL0024	LN29534-10	–
SRM1212AL0024	LN29534-11	D63274/1-21CL
SRM1415AL0024	LN29534-12	D63274/1-25CL

ROSAN PART NUMBER	LN PART NUMBER	DOD PART NUMBER
SRM0305BL0024	LN29534-01	D63274/1-1CL
SRM0407BL0024	LN29534-02	D63274/1-3CL
SRM0508BL0024	–	–
SRM0610BL0024	–	–
SRM0710BL0024	–	–
SRM0812BL0024	–	–
SRM0810BL0024	–	–
SRM1015BL0024	–	–
SRM1012BL0024	–	–
SRM1215BL0024	–	–
SRM1212BL0024	–	–
SRM1415BL0024	–	–

ROSAN PART NUMBER	LN PART NUMBER	DOD PART NUMBER
SRM0508A0036	–	D63274/1-6A
SRM0610A0036	–	D63274/1-10A
SRM0710A0036	–
SRM0812A0036	–	D63274/1-14A
SRM0810A0036	–
SRM1015A0036	–	D63274/1-18A
SRM1012A0036	–
SRM1215A0036	–
SRM1212A0036	–	D63274/1-22A
SRM1415A0036	–	D63274/1-26A

ROSAN PART NUMBER	LN PART NUMBER	DOD PART NUMBER
SRM0305B0036	–	D63274/1-2A
SRM0407B0036	–	D63274/1-4A
SRM0508B0036	–	D63274/1-8A
SRM0610B0036	–	D63274/1-12A
SRM0710B0036	–	–
SRM0812B0036	–	D63274/1-16A
SRM0810B0036	–	–
SRM1015B0036	–	D63274/1-20A
SRM1012B0036	–	–
SRM1215B0036	–	–
SRM1212B0036	–	D63274/1-24A
SRM1415B0036	–	D63274/1-28A

ROSAN PART NUMBER	LN PART NUMBER	DOD PART NUMBER
SRM0508AL0036	LN29908A05	D63274/1-5AL
SRM0610AL0036	LN29908A06	D63274/1-9AL
SRM0710AL0036	LN29908A07	–
SRM0812AL0036	LN29908A08	D63274/1-13AL
SRM0810AL0036	LN29908A09	–
SRM1015AL0036	LN29908A10	D63274/1-17AL
SRM1012AL0036	LN29908A11	–
SRM1215AL0036	LN29908A12	–
SRM1212AL0036	LN29908A13	D63274/1-21AL
SRM1415AL0036	LN29908A14	D63274/1-25AL

ROSAN PART NUMBER	LN PART NUMBER	DOD PART NUMBER
SRM0305BL0036	LN29908B03	D63274/1-1AL
SRM0407BL0036	LN29908B04	D63274/1-3AL
SRM0508BL0036	LN29908B05	D63274/1-7AL
SRM0610BL0036	LN29908B06	D63274/1-11AL
SRM0710BL0036	LN29908B07	–
SRM0812BL0036	LN29908B08	D63274/1-15AL
SRM0810BL0036	LN29908B09	–
SRM1015BL0036	LN29908B10	D63274/1-15AL
SRM1012BL0036	LN29908B11	–
SRM1215BL0036	LN29908B12	–
SRM1212BL0036	LN29908B13	D63274/1-23AL
SRM1415BL0036	LN29908B14	D63274/1-27AL

UDC 621.882.219 : 629.73, November 1970

Translation without guarantee, In any case the original standards in German are to be evidence.

Anerkonnt durch Bunderminister der Verteidigung und durch Luftfahrt-Bundesamt Nochdruck, auch ouszugsweise, nur mit
Genetmigung der Normenstelle Luftfahrt, 7022 Leinfelden.

THREADED INSERTS LOCKED AND SELF-LOCKING FOR TEMPERATURES UP TO 650 ºC

LN 29 534, Sheet 1

Gewindeeinsätze, gesichert und schraubensichernd, für Temperaturen bis 650°C Filets rapportés, freinés et feinant les
vis, pour témperatures jusqu’à 650°C

Application: Threaded inserts, locked and self-locking, are joinging elements for manufacturing high strength, wear
resistant, vibration proof and exchangeable screw attachments in materials with low shear strength or for repairing
stripped and damaged threads in those materials. The threaded inserts have a locking device that prevents the unwanted
unscrewing of the insert when loosening the screw connection. The locking of the screw connection against self-locking
is accomplished by several deformed threads in the middle of the internal thread.

Threaded inserts are intended for installation in materials with shear strength 260 N/mm2. When installed in
materials with shear strength of 260 N/mm2 the minimum tensile strength of screw connection is 1100 N/mm2.

Example for a part number for a threaded insert with internal thread d1 = M6 (code number 04):

THREADED INSERT LN 29 534-04

Internal thread				External thread Special thread(SG)			D3	I1 ±0.3	I2 ±0.2	I3	N min	R min	MASS KG/1000 pieces
Code number	D1		Not for New deisgn	D2	Minor dia Max.		D3	I1 ±0.3	I2 ±0.2	I3	N min	R min	MASS KG/1000 pieces
01		M3	–	SG 5		4.044	3.17	5.1	2.15	1.6	0.9	1.42	0.33
02		M4	–	SG 6		4.954	4.21	6.9	2.55	1.9	1.15	1.86	0.51
03		M5	–	SG 7		5.973	5.23	7.6	2.95	2.3	1.25	2.28	0.68
04		M6	–	SG 8X1		7.016	6.28	8.9	3.15	2.4	1.5	2.72	1.05
05		M7	–	SG 9X1		8.056	7.29	10.9	3.55	2.7	1.75	3.22	1.51
06		–	M8	SG 10X1		9.056	8.32	12.8	3.95	2.9	2	3.64	2.07
07		M8X1	–	SG 10X1		9.056	8.32	12.8	3.95	2.9	2	3.64	2.02
08		–	M10	SG 12X1		11.110	10.37	16.2	4.65	3.3	2.5	4.57	3.38
09		M10X1.25	–	SG 12X1		11.110	10.37	16.2	4.65	3.3	2.5	4..57	3.30
10		–	M12X1.5	SG 14X1		13.116	12.37	19.9	4.65	3.5	2.5	5.57	5.20
11		M12X1.25	–	SG 14X1		13.116	12.37	19.9	4.65	3.5	2.5	5.57	5.04
12		M14X1.5	–	SG 16X1		15.116	14.37	23.1	4.65	3.6	2.5	6.57	7.06

Mass values have been calculated with a density of 7.95 kg/dm3

Normenstelle Luftfahrt, 144 96.5

Sold exclusively by Beuth-Vertreib GmbH, Köln 2.71, LN 29 534 Bl. 1 engl. Preisgr. 4

Page 2 LN 29 534 Sheet 1

MATERIAL: 1.4944.4 per Werktoff-Handbuch der Deutschen Luftfahart, Teil 1

THREAD: Internal thread d1 : METRIC THREAD per LN 9163 sheet 5, Tolerance and allowance 5G per LN 9163 sheet 1 and sheet
6,Middle portion of thread deformed

External thread d2 :Special thread (SG) as METRIC THREAD per LN 9163 sheet 5, but with increased minor diameter (see
Table) Tolerance and allowance 4g per LN 9163 sheet 1 and sheet 6

FINISH: 3307.2 LN 9368 sheet 5

IDENTIFICATION: 3 grooves in internal thread Notches as manufacturer’s identification. Amount of notches will be
determined by Normenstelle Luftfahrt

A procurement specification is in process

Refer to LN 29 534 sheet 2 for threaded inserts, locked and self-locking, directions for construction and installation.

Further appliacble standards:

LN 29540 Sheet 1 Threaded inserts, locked and self-locking, corrosion resistant for temperatures up to 235°C LN 29540
Sheet 2 Threaded inserts, locked and self-locking; directions for design and assembly. LN 29908 Threaded inserts,
locked and self-locking, for temperatures up to 235°C.*) Refer to Aerospace Material Specificatin (AMS) of the Society
of Automotive Engineers (SAE), New York, N.Y. USA

DK 621.882.219 : 629.73, February 1971

Anerkonnt durch Bunderminister der Verteidigung und durch Luftfahrt-Bundesamt Nochdruck, auch ouszugsweise, nur mit
Genetmigung der Normenstelle Luftfahrt, 7022 Leinfelden

THREADED INSERTS LOCKED AND SELF-LOCKING FOR TEMPERATURES UP TO 650 ºC directions for design and installation

LN 29 534, Sheet 2

Gewindeeinsätze, gesichert und schraubensichernd, für Temperaturen bis 650°C, Konstruktions und Einbaurichtlinien Filets
rapportés, freinés et feinant les vis, pour témperatures jusqu’à 650°C, directives de construction et de montage

DIMENSIONS IN MILLIMETERS

Receiving thread:

The receiving thread d2 (internal thread) for the thread insert is a special thread (SG) as a metric thread per LN 9163
sheet 2, tolerance and allowance 4H5H respectively over M12x1.5 5H per LN 9163 sheet1 and 6; only the minor dia d1
(refer to Fig. 1) is increased over LN 9163. The dimensions for d1 are included in Table 1.

Table 1

D2	D1		D3		T1 +0.250	T2	for Thread insert
D2		Admissible deviations		Admissible deviations	T1 +0.250	T2		1)
SG 5	4.14	+0.1 0	5	+0.1 0	1.7	6.1	M3	–
SG 6	5.01		6		2	7.9	M4	–
SG 7	6.03		7		2.4	8.6	M5	–
SG 8X1	7.07		8		2.5	9.9	M6	–
SG 9X1	8.1		9		2.8	11.9	M7	–
SG 10X1	9.11	+0.130	10	+0.130	3	13.8	M8X1	M8
SG 12X1	11.16	+0.130	12	+0.130	3.4	17.2	M10X1.25	M10
SG 14X1	13.17	+0.150	14	+0.150	3.6	20.9	M12X1.25	M12X1.5
SG 16X1	15.17	+0.150	16	+0.150	3.7	24.1	M14X1.5	–

1) Not for new design, Normenstelle Luftfahrt, 115 90. 6

Alleinverkauf durch Beuth Vertrieb GmbH, Köln LN 29 534 Bl. 2 Febr. 1971 Preisgr. 4

Page 2 LN 29 534

Broaching of the serration into the parent material:

Before tapping the internal thread into the bore d1, a serration would be broached into the wall of the counterbore d3
according to the manufacturer’s specification; see Fig. 2 and Table 2. The counterbore d3 is provided for mating with
the knurled portion of the thread insert after swaging out. The broaching depth is in correspondence with the
counterbore depth t1. The counterbore depth t1 is completed when the shoulder of the broaching adapter is striking
against the surface of the parent material.

Table 2

Broach			Thread insert
d4	d5	l4	Thread insert
4.11	12.1	1.6	M3
4.98	13.1	1.9	M4
6	14.1	2.3	M5
7.04	16.4	2.4	M6
8.07	17.4	2.7	M7
9.08	18.4	2.9	M8
9.08	18.4	2.9	M8X1
11.13	21.5	3.3	M10
11.13	21.5	3.3	M10X1.25
13.14	23.5	3.5	M12x1.5
13.14	23.5	3.5	M12X1.25
15.14	23.5	3.6	M14X1.5

Installation of the thread insert: thread insert is wrenched into the parent material to depth shown in Fig. 3.

Fig. 3, Thread insert wrenched in

Following this operation a swage tool (see Fig. 4 and Table 3) is used to swage the collar of the insert out until the
knurl presses into thebroached serration of the counterbore d3 (see Fig. 5). The threaded insert is installed when the
shoulder of the swage tool bottoms on the surface of the parent material.

Fig. 4, Installation tool

Table 3

Installation Tool				Thread insert
d6	d7	l1	l2	Thread insert
2	11	3	5.6	M3
2.7	11	4	7.1	M4
3.8	11	5	8.5	M5
4.6	12	6	9.9	M6
5.6	14	7	11.3	M7
6.3	14	8	12.8	M8
6.3	14	8	12.8	M8X1
7.8	16	10	15.7	M10
7.8	16	10	15.7	M10X1.25
9.8	18	12	17.7	M12x1.5
9.8	18	12	17.7	M12X1.25
11.8	20	14	19.7	M14X1.5

Fig. 5, Thread insert installed

Threaded inserts, locked and self-locking, for temperatures up to 650°C per LN 29534 sheet 1. Information about tools
specified in this standard can be obatined from Normenstelle Luftfahrt.

DK,May 1975

Approved by Bunderminister der Verteidigung and Luftfahrt-Bundesamt Reproduction, even in part, may be authorized only
by Normenstelle Luftfahrt, 7022 Leinfelden

Threaded inserts locked and self-locking for temperatures up to 235 ºC, corrosion resistant

LN 29 540, Sheet 1

Gewindeeinsätze, gesichert und schraubensichernd, für Temperaturen bis 235°C, nichtrostend Filets rapportés, freinés et
autotreinants, pour témperatures jusqu’à 235°C, inoxydabies

For use in avaiation systems of German Armed Forces (Bundeswehr) any manufacturer has to request for qualification in
due time at Bundesamt für Wehrtechnik und Beschaffung – Beauftragter für das Musterprüfwesen der Bundeswahr für
Luftfahrtgerät (ML). In civil aviation, the LBA (Luftfahrt-Bundesamt) approved firm intending to use the product has to
secure that the quality requirements as stated herein are accomplished.

Application: Threaded inserts, locked and self-locking, are joinging elements for manufacturing high strength, wear
resistant, vibratin proof and exchangeable screw attachments in materials with low shear strength or for repairing
stripped and damaged threads in those materials. The threaded inserts have a locking device that prevents the unwanted
unscrewing of the insert when loosening the screw connection. The locking of the screw connection against
self-loosening is accomplished by several deformed threads in the middle of the internal thread.

Example for a designation of a threaded insert A with metric thread d1 = M6 (code number 04):Threaded insert LN 29 540
A 04, Previous Designation: LN 29 540 A M6

Internal thread			External thread Special threa (SG)		d3	l1±0.3Form		I2 ±0.2	I3	n min	r min	MASS KG/1000 pieces
Code Size	d1	Not for new design	d2	Minor dia max.	d3	A	B	I2 ±0.2	I3	n min	r min	A	B
01	M3	–	SG 5	4.044	3.17	–	5.1	2.15	1.6	0.9	1.42	–	0.33
02	M4	–	SG 6	4.954	4.21	–	6.9	2.55	1.9	1.15	1.86	–	0.51
03	M5	–	SG 7	5.973	5.23	7.6	9.1	2.95	2.3	1.25	2.28	0.68	0.83
04	M6	–	SG 8X1	7.016	6.28	8.9	10.7	3.15	2.4	1.5	2.72	1.05	1.28
05	M7	–	SG 9X1	8.056	7.29	10.9	13.3	3.55	2.7	1.75	3.22	1.51	1.86
06	–	M8	SG 10X1	9.056	8.32	12.8	15.7	3.95	2.9	2	3.64	2.07	2.54
07	M8X1	–	SG 10X1	9.056	8.32	12.8	15.7	3.95	2.9	2	3.64	2.02	2.47
08	–	M10	SG 12X1	11.110	10.37	16.2	19.9	4.65	3.3	2.5	4.57	3.38	4.28
09	M10X1.25	–	SG 12X1	11.110	10.37	16.2	19.9	4.65	3.3	2.5	4.57	3.30	4.13
10	–	M12X1.5	SG 14X1	13.116	12.37	19.9	24.8	4.65	3.5	2.5	5.57	5.20	6.50
11	M12X1.25	–	SG 14X1	13.116	12.37	19.9	24.8	4.65	3.5	2.5	5.57	5.04	6.25
12	M14X1.25	–	SG 16X1	15.116	14.37	23.1	28.8	4.65	3.6	2.5	6.57	7.06	8.95

Mass values calculated with a density of 7.93 kg/dm3

Normenstelle Luftfahrt,144 96.3

Sold exclusively by Beuth Verlag GmbH, Köln 1, LN 29 540 Sh. 1, Engl., price group

Page 2 LN 29 540 Sheet 1

MATERIAL: AMS 5643,17-4 PH, H1025 according to Aerospace Material Specification (AMS)of the Society of Automotive
Engineers (SAE), New York, N.Y., USA (minimum tensile strength 1100 N/mm2)

THREAD: Internal thread d1 : METRIC THREAD per LN 9163 sheet 2 and sheet 5Tolerance zone 4H6H up to code size 11 per LN
9163 sheet 1 and sheet 6 Center portion of thread deformed

External thread d2 : Special thread (SG) like METRIC THREAD per LN 9163 sheet 5, but with increased minor diameter (see
Table 1). Tolerance zone 4g per LN 9163 sheet 1 and sheet 6

FINISH: 5900 LN 9368 sheet 7

IDENTIFICATION: 3 grooves in internal thread, Notches as manufacturer’s identification.Amount of notches will be
determined by Normenstelle Luftfahrt

Table 2, Directions for the determination of the lengths l1

	Min tensile strength of screw connections
	900 N/mm2		1100 N/mm2
	Form A	Form B	Form A	Form B
Installation in material with shear strength of N/mm2min	220	170	260	200

A procurement specification is in process

Further applicable documents:

LN 29534 Sheet 1 Threaded inserts, locked and self-locking, for temperatures up to 650°C

LN 29534 Sheet 2 Threaded inserts, locked and self-locking, for temperatures up to 650°C, directions for design and
installation.

LN 29540 Sheet 2 Threaded inserts, locked and self-locking, directions for design and installation.

LN 29908 Threaded inserts, locked and self-locking, for temperatures up to 235°C.Prliminary standard

UDC 621.882.1 : 629.73,Oktober 1967

Translation without guarantee In any case the original standards in German are to be evidence

Anerkonnt durch Bunderminister der Verteidigung und durch Luftfahrt-Bundesamt Nochdruck, auch ouszugsweise, nur mit
Genetmigung der Normenstelle Luftfahrt, 7022 Leinfelden

THREADED INSERTS LOCKED AND SELF-LOCKING DIRECTIONS FOR DESIGN AND INSTALLATION

LN 29 540, Sheet 2

Gewindeeinsätze, gesichert und schraubensichernd, Konstruktions und Einbaurichtlinien Filets rapportés, freinés avec
frein de vis, directives de construction et d’installation These directions for design and installation are for threaded
inserts per LN 29 540 sheet 1.

DIMENSIONS IN mm

RECEIVING THREAD: The receiving thread d2 (internal thread) for the thread insert is a metric ISO thread per LN 9163
sheet 2, tolerance and allowance 4H5H and 5H respectively per LN 9163 sheet1 and 6; only the minor dia d1 (refer to
Fig. 1) is increased over LN9163. The dimensions for d1 are included in Table 1.

The counterbore depth t1 and the counterbore diameter d3 (refer to Fig. 1) are also included in Table 1.

TABLE 1

d2	d1	d3	t1+0.25	t2MINTHREADED INSERTFORM		for Threaded insert
d2	d1	d3	t1+0.25	A	B		1)
M5	4.14-4.24	5-5.1	1.7	–	6.1	M3	–
M6	5.01-5.11	6-6.1	2	–	7.9	M4	–
M7	6.03-6.13	7-7.1	2.4	8.6	10.1	M5	–
M8X1	7.07-7.17	8-8.1	2.5	9.9	11.7	M6	–
M9X1	8.1-8.2	9-9.1	2.8	11.9	14.3	M7	–
M10X1	9.11-9.24	10-10.13	3	13.8	16.7	M8X1	M8
M12X1	11.16-11.29	12-12.13	3.4	17.2	20.9	M10X1.25	M10
M14X1	13.17-13.32	14-14.15	3.6	20.9	25.8	M12X1.25	M12X1.5
M16X1	15.17-15.32	16-16.15	3.7	24.1	29.8	M14X1.5	–

1) Not for new design

Normenstelle Luftfahrt,115 90. 5

Page 2 LN 29 540 Sheet 2

INSTALLATION OF THE THREADED INSERT: thread insert is wrenched into the parent material to depth shown in Fig. 2.

FIG. 2,THREADED INSERT WRENCHED IN

Following this operation a swage tool (see Fig. 3 and Table 2) is used to swage the collar of the insert out until it
presses into the wall of the counterbore d3 (see Fig. 4). The threaded insert is installed when the shoulder of the
swage tool bottoms on the surface of the parent material.

Table 2

Size of Installation Tool				Size of Threaded insert
d4	d5	l1	l2	Size of Threaded insert
2	11	3	5.6	M3
2.7	11	4	7.1	M4
3.8	11	5	8.5	M5
4.6	12	6	9.9	M6
5.6	14	7	11.3	M7
6.3	14	8	12.8	M8
6.3	14	8	12.8	M8X1
7.8	16	10	15.7	M10
7.8	16	10	15.7	M10X1.25
9.8	18	12	17.7	M12x1.5
9.8	18	12	17.7	M12X1.25
11.8	20	14	19.7	M14X1.5

Threaded inserts, locked and self-locking, for temperatures up to 260°C per LN 29540 sheet 1.Information about tools
contained in this standard can be obatined from Normenstelle Luftfahrt.

UDC 621.882.219 : 621.882.55 : 629.73,Juni 1975

Translation without guarantee, In any case the original standards in German are to be evidence

Anerkonnt durch Bunderminister der Verteidigung und durch Luftfahrt-Bundesamt Nochdruck, auch ouszugsweise, nur mit
Genetmigung der Normenstelle Luftfahrt, 7022 Leinfelden

Threaded inserts locked and self-locking for temperatures up to 235 ºC,LN 29 908

Gewindeeinsätze, gesichert und schraubensichernd, für Temperaturen bis 235°C Filets rapportés, freinés et feinant les
vis, pour témperatures jusqu’à 235°C

For use in avaiation systems of German Armed Forces (Bundeswehr) any manufacturer has to request for qualification in
due time at his responsible National Qualification Authority.

In civil aviation, the LBA (Luftfahrt-Bundesamt) approved firm intending to use the product has to secure that the
quality requirements as stated herein are accomplished.

damaged threads in those materials. The threaded inserts have a locking device that prevents the unwanted unscrewing of
the insert when the screw is slackened. The locking of the screw itself against unloosening is accomplished by several
deformed threads in the middle of the internal thread.

Example for a part number for a threaded insert Form A with internal thread d1 = M6 (code number 06): Threaded insert
LN 29 908 A 06 Previous Designation: Threaded Insert A 06 LN 29 908

Normenstelle Luftfahrt,144 96.4

Alleinverkauf derLuftfahrt-Norman durch Beuth Verlag GmbH, Köln 1, LN 29 908 engl., Preisgr. 4

Page 2 LN 29 908

Table 1

Internal thread			External thread Special thread(SG)		d3	l ±0.3		l2 ±0.2	l3	n min	r min	Mass kg/1000 pieces
Code Number	d	Not for new deisgn	d2	Minor dia max.	d3	Form A	Form B	l2 ±0.2	l3	n min	r min	A	B
03	M3	–	SG 5	4.044	3.17	–	5.1	2.15	1.6	0.9	1.42	–	0.33
04	M4	–	SG 6	4.954	4.21	–	6.9	2.55	1.9	1.15	1.86	–	0.51
05	M5	–	SG 7	5.973	5.23	7.6	9.1	2.95	2.3	1.25	2.28	0.67	0.82
06	M6	–	SG 8X1	7.016	6.28	8.9	10.7	3.15	2.4	1.5	2.72	1.04	1.27
07	[ M7]	–	SG 9X1	8.056	7.29	10.9	13.3	3.55	2.7	1.75	3.22	1.50	1.84
08	–	M8	SG 10X1	9.056	8.32	12.8	15.7	3.95	2.9	2	3.64	2.05	2.52
09	M8X1	–	SG 10X1	9.056	8.32	12.8	15.7	3.95	2.9	2	3.64	2.00	2.45
10	–	M10	SG 12X1	11.110	10.37	16.2	19.9	4.65	3.3	2.5	4.57	3.35	4.24
11	M10X1.25	–	SG 12X1	11.110	10.37	16.2	19.9	4.65	3.3	2.5	4.57	3.27	4.09
12	–	M12X1.5	SG 14X1	13.116	12.37	19.9	24.8	4.65	3.5	2.5	5.57	5.15	6.44
13	M12X1.25	–	SG 14X1	13.116	12.37	19.9	24.8	4.65	3.5	2.5	5.57	5.00	6.19
14	M14X1.5	–	SG 16X1	15.116	14.37	23.1	28.8	4.65	3.6	2.5	6.57	7.00	8.86
Values for mass have been calculated with a density of 7.85 kg/dm3 Value in brackets applies to power plants only.

MATERIAL: 1.7214.5 per Werkstoff-Handbuch der Deutschen Luftfahrt, Teil 1

THREAD: Internal thread: METRIC THREAD per LN 9163 sheet 2 and 5Tolerance zone 4H5H up to code 11 per LN 9163 sheet 1
and sheet 6 Tolerance zone 5H for code size 12 Middle portion of thread deformed

External thread: Special thread (SG) as METRIC THREAD per LN 9163 sheet 5, but with an increased minor diameter (see
table 1). Tolerance and allowance 4g per LN 9163 sheet 1 and sheet 6

FINISH: 3000.7 +5900 LN 9368 sheet1, sheet 5 and sheet 7

IDENTIFICATION: 3 grooves in internal thread Notches as manufacturer’s identification.Numberof notches will be
determined by Normenstelle Luftfahrt

DIRECTIONS FOR THE DETERMINATION OF THE LENGTHS l1 SEE TABLE 2

Table 2

Min. tensile strength of screw connections N/mm2	900		1100
l1	Form A	Form B	Form A	Form B
Installation in material with shear strength of N/mm2 min	220	170	260	200

A procurement specification is in process of preparation.

Further appliacble standards:

LN 29534 Sheet 1 Threaded inserts, locked and self-locking, for temperatures up to 650°C

LN 29534 Sheet 2 Threaded inserts, locked and self-locking, for temperatures up to 650°C, directions for design and
installation

LN 29540 Sheet 1 Threaded inserts, locked and self-locking, corrosion resistant for temperatures up to 235°C.

LN 29540 Sheet 2 Threaded inserts, locked and self-locking, directions for design and assembly.

Metric, DOD-I-63274/1A, 14 February 1983, SUPERSEDING DOD-I-63274/1, 26 September 1977

MILITARY SPECIFICATION SHEET

INSERT, SCREW THREAD-THIN WALL, LOCKED IN, METRIC

This specification is approved for use by all Departments and Agencies of the Department of Defense.The complete
requirements for acquiring the insert described herein shall consist of this specification and the lastest issue of
specification DOD-I-63274.

NOTES:

Unless otherwise specified, dimensions are in millimeters, and shall apply after plating and before the addition
of solid film lubricant.
The centerline of the internal thread locking feature shall be approximately mid-length of internal thread.

TABLE I. Part dimensions and dash numbers

DASH NUMBER *			A INTERNAL THREAD	B EXT THREAD ALTERED MINOR DIA		C LENGTH ±0.3	D DIA ±0.20	E ±0.20	F ±0.3	G DIA MIN	H MIN	MIN SHEAR ENGAGEMENT AREA (mm2) (REQT 5)
17-4PH CRES	ALLOY STEEL	A-286 CRES		THREAD SIZE	MAX MINOR DIA
1L	1AL	1CL	MJ3X0.5	M5X0.8	4.044	5.1	3.17	2.15	1.6	2.84	0.90	25.44
2	2A	2C								2.86	1.20
3L	3AL	3CL	MJ4X0.7	M6X1	4.954	6.9	4.21	2.55	1.9	3.72	1.15	49.73
4	4A	4C								3.74	1.50
5L	5AL	5CL	MJ5X0.8	M7X1	5.973	7.6	5.23	2.95	2.3	4.56	1.25	63.32
6	6A	6C								4.69	1.70
7L	7AL	–				9.1				4.56	1.25	87.28
8	8A	–								4.69	1.70
9L	9AL	9CL	MJ6X1	M8X1	7.016	8.9	6.28	3.15	2.4	5.44	1.50	95.29
10	10A	10C								5.58	2.00
11L	11AL	–				10.7				5.44	1.50	128.20
12	12A	–								5.58	2.00
13L	13AL	13CL	MJ8X1.25	M10X1	9.056	12.8	8.32	3.95	2.9	7.28	2.00	198.10
14	14A	14C								7.58	2.70
15L	15AL	–				15.7				7.28	2.00	264.70
16	16A	–								7.58	2.70
17L	17AL	17CL	MJ10X1.5	M12X1	11.110	16.2	10.37	4.65	3.3	9.14	2.50	321.30
18	18A	18C								9.43	3.20
19L	19AL	–				19.9				9.14	2.50	423.00
20	20A	–								9.43	3.20
21L	21AL	21CL	MJ12X1.25	M14X1	13.116	19.9	12.37	4.65	3.5	11.14	2.50	478.20
22	22A	22C								11.43	3.20
23	23AL	–				24.8				11.14	2.50	632.50
24	24A	–								11.43	3.20
25L	25AL	25CL	MJ14X1.5	M16X1	15.116	23.1	14.37	4.65	3.6	13.15	2.50	659.00
26	26A	26C								13.30	3.20
27L	27AL	–				28.8				13.15	2.50	864.50
28	28A	–								13.30	3.20

* “L” suffix indicates self-locking insert.

FSC 5340,DOD-I-63274/1A

REQUIREMENTS:

1. Material: Steel, alloy, composition 4130 (UNS G41300) per AMS6370.Steel, corrosion-resisting, composition 17-4PH (UNS
S17400) per AMS5643.Steel, corrosion resisting, composition A-286 (UNS K66286) per AMS 5731 or AMS5734.

2. Protective finish or treatment: Alloy steel (UNS G41300) shall be cadmium plated plus solid film lubricantin
accordance with general specification. Corrosion resisting steel (UNS S17400) shall be coated with solid film lubricant
in accordance with general specification. Corrosion-resisting steel (UNS K66286) shall be silver plated in accordance
with general specification.

3.Surface texture: 3.2 µm except knurling.

4. Threads: Threads shall be in accordance with Table I and general specification. Thread dimensions shall apply
before application of solid filmlubricant.

5.Shear engagement area: Shear engagement area is the assembled dimemsional value for the overall engaged area
of mating thread members. It doe snot represent a dimension of either of the members in an unassembled condition.

6. Military part number: Consists of the letter “D”, pkus the basic number of the specification sheet and a dash
number taken from Table I.

Example of Military part number:D63274/1- 3Cl, Basic number of Dash, specification sheet No.

Explanation of part number example:Insert, Steel, CRES, A-286, MJ4x0.7 internal
thread size, and a self-locking feature.

DOD-I-63274/1A

TABLE II. Installation criteria in parent material

INSERT DASH NUMBER REF	EXTERNAL THREAD SIZE OF INSERT REF	A TAP DRILL DIA		B CBORE DIA		C CBORE DEPTH +0.25 -0.00	D THREAD ALTERED MINOR DIA (NOTE 3)	E FULL THREAD DEPTH MIN	F DRILL DEPTH BLIND HOLE MIN	INSERT REMOVAL DRILL SIZE (NOTE 7)
		MAX	MIN	MAX	MN
1, 2	M5X0.8	4.24	4.14	5.10	5.00	1.70	M5X0.8	6.1	8.1	4.9
3, 4	M6X1	5.11	5.01	6.10	6.00	2.00	M6X1	7.9	10.4	5.8
5, 6	M7X1	6.13	6.03	7.10	7.00	2.40	M7X1	8.6	11.1	6.9
7, 8								10.1	12.6
9, 10	M8X1	7.17	7.07	8.10	8.00	2.50	M8X1	9.9	12.4	7.8
11, 12								11.7	14.2
13, 14	M10X1	9.24	9.11	10.13	10.00	3.00	M10X1	13.8	16.3	9.9
15, 16								16.7	19.2
17, 18	M12X1	11.29	11.16	12.13	12.00	3.40	M12X1	17.2	19.7	12.0
19, 20								20.9	23.4
21, 22	M14X1	13.32	13.17	14.15	14.00	3.60	M14X1	20.9	23.4	14.0
23, 24								25.8	28.3
25, 26	M16X1	15.32	15.17	16.15	16.00	3.70	M16X1	24.1	26.6	16.0
27, 28								29.8	32.3

NOTES:

1. Diameter “A” and thread shall be concentric with 15 FIM.

2. Axis of hole shall be normal to entry surface or provide spotface when required.

3. Threads “D” shall be class-4H5H.

4. Machined surfaces shall be 2µm in accordance with ANSI B46.1.

5. All dimensions are inmillimeters.

6. Install insert:

a. These inserts are primarily designed for use in aluminum, magnesium, and other nonferrous materials that do not
exceed Brinell 187 (3000 kg load and 10 mm ball). Use in corrosion resisting steels, titanium and hardened ferrous
materials will normally require broaching serrations in counterbore to accept the insert knurls during swaging
operation.

b. Use of inserts manufacturer’s wrench and swaging tool is mandatory. (Rosan, Newport Beach, CA – (FSCM 83324)

c. Install insert into hole until the top of insert is 40-0.65 below boss surface.

d. Place swage tool in insert and apply a downward force sufficient to bottom the tool shoulder against the boss
surface, which will effect full swageout and external lock setting.

7. Replacement of inserts is made with same size inserts as those Using removal drill size shown in Table II, drill to
depth “C” +0.6, then back out insert using installation wrench or square type screw extractor. Remove loose chips,
reinspect hole and then install new insert per note 6.

Custodians:Army – AR,Navy – OS,Air Force – 99

Preparing Activity:Army – AR ,(Project No. 5340-1462)

Reviewer Activities: Army – AV, MI Air Force – 11, DSA – IS

User Activities: Army – ME, AT, CR Navy – MC

*U.S. GOVERNMENT PRINTING OFFICE: 1983 – 605-034/1698

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Fluid Fittings

PART NUMBER CONVERSION

THREADED INSERT LN 29 534-04