NIIN Output Data
NIIN:
NSN:
Item Name:
SCREW , EXTERNALLY RELIEVED BODY
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, AND WHOSE UNTHREADED PORTION HAS BEEN MACHINED OR GROUND IN ONE OR MORE PLACES OR OVER ITS ENTIRE LENGTH TO A MAXIMUM DIAMETER LESS THAN THE MINIMUM PITCH DIAMETER OF THE THREAD (EXCLUDES UNDERCUT FOR THREAD RELIEF). IT IS NO. 0 (0.060 IN.) (1.5 MM) OR LARGER, AND IS DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND MULTIPLE SPLINE TYPES) OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND MULTIPLE SPLINE TYPES) BUT MAY ALSO BE DESIGNED FOR EXTERNAL WRENCHING. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. SEE ALSO BOLT, EXTERNALLY RELIEVED BODY AND BOLT, INTERNAL WRENCHING.
Reference/Part Number
CAGE Information
| Code |
Company |
| 04729 |
UNICORP |
| 1YGB8 |
CAREY MANUFACTURING COMPANY INC. DBA |
| 26512 |
NORTHROP GRUMMAN SYSTEMS CORPORATION |
| 06540 |
NEW HAVEN MFG CORP AMATOM ELECTRONIC |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AASA |
THREAD LENGTH |
0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
KNURLED NO. 1 |
| ABQZ |
INTERNAL DRIVE STYLE |
SLOT |
| AASU |
HEAD HEIGHT |
0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM |
| MATT |
MATERIAL |
STEEL CORROSION RESISTING OVERALL |
| CSNG |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY |
1 |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| AAWH |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER |
0.792 INCHES MINIMUM AND 0.832 INCHES MAXIMUM |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
ASTMA555 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR ASTMA581 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AASL |
HEAD DIAMETER |
0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| AAJD |
THREAD CLASS |
2A |
| AAWC |
FIRST DIAMETER FROM HEAD |
0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM |
| AASB |
FASTENER LENGTH |
1.172 INCHES MINIMUM AND 1.202 INCHES MAXIMUM |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
| SFTT |
SURFACE TREATMENT |
PASSIVATE OVERALL |
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