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 |
| 10001 |
NAVAIR AND NAVSEA MANAGED ORIGINAL D |
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AASA |
THREAD LENGTH |
0.344 INCHES MINIMUM |
| AASA |
THREAD LENGTH |
0.344 INCHES MINIMUM |
| AHYM |
NOMINAL THREAD DIAMETER |
0.190 INCHES |
| AATX |
SHOULDER LENGTH |
0.198 INCHES MINIMUM FIRST SHOULDER AND 0.203 INCHES MAXIMUM FIRST SHOULDER |
| AASK |
HEAD STYLE |
PAN NO. 2 |
| ABQZ |
INTERNAL DRIVE STYLE |
SLOT |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
QQ-B-637 FED SPEC 2ND MATERIAL RESPONSE OVERALL OR QQ-B-637 FED SPEC 3RD MATERIAL RESPONSE OVERALL OR QQ-B-639 FED SPEC 2ND MATERIAL RESPONSE OVERALL OR QQ-B-637 FED SPEC 1ST MATERIAL RESPONSE OVERALL OR QQ-B-637 FED SPEC 4TH MATERIAL RESPONSE OVERALL |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| MATT |
MATERIAL |
COPPER ALLOY 464 OVERALL OR COPPER ALLOY 462 OVERALL OR COPPER ALLOY 482 OVERALL OR COPPER ALLOY 485 OVERALL |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AATN |
SHOULDER DIAMETER |
0.311 INCHES MINIMUM FIRST SHOULDER AND 0.312 INCHES MAXIMUM FIRST SHOULDER |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AASU |
HEAD HEIGHT |
0.188 INCHES NOMINAL |
| AAJD |
THREAD CLASS |
2A |
| AASB |
FASTENER LENGTH |
0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
32 |
| AASL |
HEAD DIAMETER |
0.526 INCHES MINIMUM AND 0.536 INCHES MAXIMUM |
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