National Stock Number (NSN) Output Data
NSN:
NIIN:
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 |
| 00000 |
ORDNANCE CORPS |
| 1YGB8 |
CAREY MANUFACTURING COMPANY INC. DBA |
| 06540 |
NEW HAVEN MFG CORP AMATOM ELECTRONIC |
| 18876 |
U S ARMY AVIATION AND MISSILE COMMAN |
| 49956 |
RAYTHEON COMPANY DBA RAYTHEON |
| 94144 |
RAYTHEON COMPANY DBA RAYTHEON |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-N-290,TY V,MATTE FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.190 INCHES |
| CMLP |
THREAD QUANTITY PER INCH |
24 |
| AAWD |
SECOND DIAMETER FROM HEAD |
0.190 INCHES NOMINAL |
| AAWH |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER |
0.344 INCHES NOMINAL |
| AASB |
FASTENER LENGTH |
0.750 INCHES NOMINAL |
| ABQZ |
INTERNAL DRIVE STYLE |
SLOT |
| CQFM |
HARDNESS RATING |
57.0 ROCKWELL B MINIMUM OVERALL AND 77.0 ROCKWELL B MAXIMUM OVERALL |
| MATT |
MATERIAL |
STEEL COMP 303 OVERALL |
| AAWK |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER |
0.750 INCHES NOMINAL |
| AASL |
HEAD DIAMETER |
0.375 INCHES NOMINAL |
| CSNG |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY |
1 |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASK |
HEAD STYLE |
FLAT CHAMFER |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
ASTM A582 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| AASA |
THREAD LENGTH |
0.250 INCHES MINIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| AAJD |
THREAD CLASS |
2A |
| AASU |
HEAD HEIGHT |
0.438 INCHES NOMINAL |
| AAWE |
THIRD DIAMETER FROM HEAD |
0.130 INCHES NOMINAL |
| AAWJ |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER |
0.594 INCHES NOMINAL |
| AAWC |
FIRST DIAMETER FROM HEAD |
0.130 INCHES NOMINAL |
| SFTT |
SURFACE TREATMENT |
NICKEL OVERALL |
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