Part Number
Part Number:
NSN:
NIIN:
Item Name:
SCREW , SHOULDER
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN.) (1.5 MM) OR LARGER. IT HAS A ROUND UNTHREADED NECK OR SHANK ALL OR PART OF WHICH IS OF GREATER DIAMETER THAN THE THREADED PORTION. THE HEAD IS DESIGNED TO BE DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) NOMINAL DIAMETER. NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST BE DESIGNED FOR ANY TYPE OF INSERTED DRIVER, BUT MAY ALSO PROVIDE FOR EXTERNAL WRENCHING OF THE HEAD. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS WHICH ARE BOTH SHOULDERED AND HAVE AN EXTERNALLY RELIEVED BODY, USE SCREW, EXTERNALLY RELIEVED BODY. FOR ITEMS WITH A NO. 10 (0.190 IN.) (5 MM) OR LARGER THREAD DIAMETER WITHOUT AN INSERTED DRIVER HEAD, USE BOLT, SHOULDER. EXCLUDES BOLT, INTERNAL WRENCHING AND SCREW, CAP, SOCKET HEAD.
CAGE Information
| Code |
Company |
| 25169 |
PROJECT MANAGER AMPHIBIOUS LIGHTERS |
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AASU |
HEAD HEIGHT |
0.312 INCHES MAXIMUM |
| AASB |
FASTENER LENGTH |
1.875 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
3A |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AATN |
SHOULDER DIAMETER |
0.498 INCHES MAXIMUM FIRST SHOULDER |
| AASK |
HEAD STYLE |
FLAT CHAMFER |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
QQ-S-637,COMP B1112 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| AASL |
HEAD DIAMETER |
0.750 INCHES MAXIMUM |
| AATX |
SHOULDER LENGTH |
1.250 INCHES NOMINAL FIRST SHOULDER |
| CMLP |
THREAD QUANTITY PER INCH |
16 |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| CQFM |
HARDNESS RATING |
36.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| ASDB |
WIDTH ACROSS FLATS |
0.252 INCHES MAXIMUM |
| ABQZ |
INTERNAL DRIVE STYLE |
HEXAGON |
| AHYM |
NOMINAL THREAD DIAMETER |
0.375 INCHES |
| AASA |
THREAD LENGTH |
0.531 INCHES NOMINAL |
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