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Lightweight Studs

PART NO. DIMENSIONS INSTALLATION DATA REMOVAL DATA
NUT END STUD END TAP DRILL DIA. C’SINK DIA.

± .010

– .000

THREAD TAP INSTALLATION TOOL DRILL
THREAD SIZE CLASS 3A THREAD LENGTH

± .030

DRILLED HOLE THREAD SIZE CLASS 2A

(Minor Dia.

Mod.)

SHEAR ENGAG. L SIZE UNC-2B MIN.DEPTH FULL THD. PART NUMBER MAX. NL LENGTH SIZE DEPTH
D

± .020

DIA.
KNNS1032J 10 – 32 .41 .141 .070 5/16 – 18 .1517 .31 .272 .323 5/16 – 18 .37 TNS 010 2-1/2 7/32 5/32
KNNS1024J 10 – 24
KNNS428J 1/4 – 28 .47 .156 .076 3/8 – 16 .2371 .37 .332 .385 3/8 – 16 .43 TNS 4 2-1/2 9/32 3/16
KNNS420J 1/4 – 20
KNNS524J 5/16 – 24 .53 .172 .076 7/16 – 14 .3049 .43 .397 .447 7/16 – 14 .50 TNS 5 2-1/2 11/32
KNNS518J 5/16 – 18
KNNS624J 3/8 – 24 .64 .172 .106 1/2 – 13 .4299 .50 .453 .510 1/2 – 13 .56 TNS 6 2-1/2 13/32
KNNS616J 3/8 – 16
KNNS720J 7/16 – 20 .66 .172 .106 9/16 – 12 .5665 .56 .516 .572 9/16 – 12 .62 TNS 7 2-1/2 15/32
KNNS714J 7/16 – 14
KNNS820J 1/2 – 20 .78 .172 .106 5/8 – 11 .7172 .62 .578 .635 5/8 – 11 .68 TNS 8 2-1/2 17/32
KNNS813J 1/2 – 13

STANDARD MATERIALS: Stud: Must be specified

KEES: 302 CRES

See “How To Order,” Page 31 for stud materials and additional information.

How To Order: This ordering code must be used to complete all part numbers tabulated in this section except the AND Standard studs.

BASIC HEAVY DUTY

NUT END THREAD

STUD

KNHS 428 J MX-22D SY-1.36

NUT END THREAD

(In decimals if Non-Standard.)

FINISH DESIGNATION

(Used ONLY if finish required is other than standard specified for

in 1/16 inch increments, except below

1/4 inch bolt size Numbered screw sizes as follows:

10 – #10 screw size

08 – #8 screw size

06 – #6 screw size

NUT END THREADS PER DESIGNATES MIL-S-8879 THREADS

ON

material designated.)

SP= Silver Plate per QQ-S-365

SX= Cad. Plate per QQ-P-416 Type I CL. 3 SY= Cad. Plate per QQ-P-416 Type II CL. 3 SZ= Cad. Plate per QQ-P-416 Type II CL. 2

DRILLED HOLE IN NUT END THREADS NUT END LENGTH

Must be specified in 1/16 inch increments, (Ex.: – 22 = 1-3/8 inch)

MATERIAL DESIGNATION

S= 303 CRES (passivated), has no identifying marks on stud

M= Chrome Moly Steel 125,00 P.S.I. MIN. identified on top of stud by two non- parallel dash marks (cad. plated per QQ-P-416 Type I CL. 3)

MX= Chrome Moly Steel 160,00 P.S.I. MIN. identified on top of stud by two parallel marks (cad. plated per QQ-P-416 Type I CL. 3)

T= A286 CRES 140,000 P.S.I. MIN. (passivated) identified on top of stud by one mark

TX= A286 CRES 180,000 P.S.I. MIN. (passivated) identified on top of stud by

SECTION

SECTION

Lightweight Studs

Cross Reference MS 51833 Series.

2

Coarse Threads Fine Threads

MATERIAL MATERIAL

303 CRES 4140/160 KSI A286/140 KSI
KNNS 1024JS-(NL) KNNS 1024JMXSY-(NL) KNNS 1024JT-(NL)
MS 51833 C101-(NL) MS 51833-101-(NL) MS 51833 A101-(NL)
KNNS 420JS-(NL) KNNS 420JMXSY-(NL) KNNS 420JT-(NL)
MS 51833 C102-(NL) MS 51833-102-(NL) MS 51833 A102-(NL)
KNNS 518JS-(NL) KNNS 518JMXSY-(NL) KNNS 518JT-(NL)
MS 51833 C103-(NL) MS 51833-103-(NL) MS 51833 A103-(NL)
KNNS 616JS-(NL) KNNS 616JMXSY-(NL) KNNS 616JT-(NL)
MS 51833 C104-(NL) MS 51833-104-(NL) MS 51833 A104-(NL)
KNNS 714JS-(NL) KNNS 714JMXSY-(NL) KNNS 714JT-(NL)
MS 51833 C105-(NL) MS 51833-105-(NL) MS 51833 A105-(NL)
KNNS 813JS-(NL) KNNS 813JMXSY-(NL) KNNS 813JT-(NL)
MS 51833 C106-(NL) MS 51833-106-(NL) MS 51833 A106-(NL)
303 CRES 4140/160 KSI A286/140 KSI
KNNS 1032JS-(NL) KNNS 1032JMXSY-(NL) KNNS 1032JT-(NL)
MS 51833 C201-(NL) MS 51833-201-(NL) MS 51833 A201-(NL)
KNNS 428JS-(NL) KNNS 428JMXSY-(NL) KNNS 428JT-(NL)
MS 51833 C202-(NL) MS 51833-202-(NL) MS 51833 A202-(NL)
KNNS 524JS-(NL) KNNS 524JMXSY-(NL) KNNS 524JT-(NL)
MS 51833 C203-(NL) MS 51833-203-(NL) MS 51833 A203-(NL)
KNNS 624JS-(NL) KNNS 624JMXSY-(NL) KNNS 624JT-(NL)
MS 51833 C204-(NL) MS 51833-204-(NL) MS 51833 A204-(NL)
KNNS 720JS-(NL) KNNS 720JMXSY-(NL) KNNS 720JT-(NL)
MS 51833 C205-(NL) MS 51833-205-(NL) MS 51833 A205-(NL)
KNNS 820JS-(NL) KNNS 820JMXSY-(NL) KNNS 820JT-(NL)
MS 51833 C206-(NL) MS 51833-206-(NL) MS 51833 A206-(NL)
303 CRES 4140/160 KSI A286/140 KSI
KNNS 1024JS-(NL) KNNS 1024JMXSY-(NL) KNNS 1024JT-(NL)
MS 51833 C101-(NL) MS 51833-101-(NL) MS 51833 A101-(NL)
KNNS 420JS-(NL) KNNS 420JMXSY-(NL) KNNS 420JT-(NL)
MS 51833 C102-(NL) MS 51833-102-(NL) MS 51833 A102-(NL)
KNNS 518JS-(NL) KNNS 518JMXSY-(NL) KNNS 518JT-(NL)
MS 51833 C103-(NL) MS 51833-103-(NL) MS 51833 A103-(NL)
KNNS 616JS-(NL) KNNS 616JMXSY-(NL) KNNS 616JT-(NL)
MS 51833 C104-(NL) MS 51833-104-(NL) MS 51833 A104-(NL)
KNNS 714JS-(NL) KNNS 714JMXSY-(NL) KNNS 714JT-(NL)
MS 51833 C105-(NL) MS 51833-105-(NL) MS 51833 A105-(NL)
KNNS 813JS-(NL) KNNS 813JMXSY-(NL) KNNS 813JT-(NL)
MS 51833 C106-(NL) MS 51833-106-(NL) MS 51833 A106-(NL)
303 CRES 4140/160 KSI A286/140 KSI
KNNS 1032JS-(NL) KNNS 1032JMXSY-(NL) KNNS 1032JT-(NL)
MS 51833 C201-(NL) MS 51833-201-(NL) MS 51833 A201-(NL)
KNNS 428JS-(NL) KNNS 428JMXSY-(NL) KNNS 428JT-(NL)
MS 51833 C202-(NL) MS 51833-202-(NL) MS 51833 A202-(NL)
KNNS 524JS-(NL) KNNS 524JMXSY-(NL) KNNS 524JT-(NL)
MS 51833 C203-(NL) MS 51833-203-(NL) MS 51833 A203-(NL)
KNNS 624JS-(NL) KNNS 624JMXSY-(NL) KNNS 624JT-(NL)
MS 51833 C204-(NL) MS 51833-204-(NL) MS 51833 A204-(NL)
KNNS 720JS-(NL) KNNS 720JMXSY-(NL) KNNS 720JT-(NL)
MS 51833 C205-(NL) MS 51833-205-(NL) MS 51833 A205-(NL)
KNNS 820JS-(NL) KNNS 820JMXSY-(NL) KNNS 820JT-(NL)
MS 51833 C206-(NL) MS 51833-206-(NL) MS 51833 A206-(NL)

NOTE: Replace (NL) in Part No. with Nut End Length in 1/16” increments.

Ex.: -22 = 1 3/8”

NOTE: When referring to MS Part Nos. use “dash” (-) in Part No. in lieu of “D” if drilled hole is not required. Use “D” in Part No. in lieu of “dash” (-) only if drilled hole is required.

Ex.: MS 51834 C103 D24

NOTE: MIL-S-45915 dated 25 Nov 1970 has been superseded by MIL-S-45915A dated 21 Aug 1991.

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