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.