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 |
| 98230 |
NATIONAL SECURITY AGENCY |
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AASB |
FASTENER LENGTH |
0.403 INCHES MINIMUM AND 0.423 INCHES MAXIMUM |
| AHYM |
NOMINAL THREAD DIAMETER |
0.086 INCHES |
| AATB |
WIDTH BETWEEN FLATS |
0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM |
| MATT |
MATERIAL |
STEEL COMP 303 OVERALL |
| AASU |
HEAD HEIGHT |
0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM |
| CWYB |
SHOULDER SHAPE |
ROUND FIRST SHOULDER |
| ABQZ |
INTERNAL DRIVE STYLE |
W/O INTERNAL DRIVE |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AATN |
SHOULDER DIAMETER |
0.110 INCHES MINIMUM FIRST SHOULDER AND 0.113 INCHES MAXIMUM FIRST SHOULDER |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| AAJD |
THREAD CLASS |
2A |
| AASK |
HEAD STYLE |
HEXAGON |
| CMLP |
THREAD QUANTITY PER INCH |
56 |
| AASA |
THREAD LENGTH |
0.183 INCHES MINIMUM AND 0.216 INCHES MAXIMUM |
| AATX |
SHOULDER LENGTH |
0.197 INCHES MINIMUM FIRST SHOULDER AND 0.203 INCHES MAXIMUM FIRST SHOULDER |
| SFTT |
SURFACE TREATMENT |
PASSIVATE OVERALL |
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