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 |
| 43689 |
HUNTINGTON INGALLS INCORPORATED DIV |
| 53711 |
NAVAL SEA SYSTEMS COMMAND |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AASU |
HEAD HEIGHT |
0.500 INCHES NOMINAL |
| ABQZ |
INTERNAL DRIVE STYLE |
SLOT |
| MATT |
MATERIAL |
STEEL COMP 304 OVERALL |
| AASA |
THREAD LENGTH |
0.500 INCHES NOMINAL |
| AAWC |
FIRST DIAMETER FROM HEAD |
0.188 INCHES NOMINAL |
| CSNG |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY |
1 |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AAWH |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER |
1.300 INCHES NOMINAL |
| AASK |
HEAD STYLE |
HEADLESS (SETSCREW) |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| AAJD |
THREAD CLASS |
2A |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
QQ-S-763, COND B, FINISH B FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
| AASB |
FASTENER LENGTH |
1.800 INCHES NOMINAL |
| SFTT |
SURFACE TREATMENT |
PASSIVATE OVERALL |
| AASL |
HEAD DIAMETER |
0.750 INCHES NOMINAL |
Similar Parts