Part Number
Part Number:
NSN:
NIIN:
Item Name:
THUMBSCREW
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER. IT MAY HAVE AN UNTHREADED PORTION WITH A DIAMETER LESS THAN, EQUAL TO, OR GREATER THAN THE DIAMETER OF THE THREADED PORTION. IT HAS EITHER A VERTICALLY FLATTENED, CIRCULAR KNURLED, OR WING TYPE HEAD, ALL OF WHICH ARE DESIGNED FOR ROTATION BY THE THUMB AND FINGERS. FOR ITEMS HAVING WRENCHING FACILITIES SUCH AS SOCKET RECESS, MULTIPLE SPLINE OR SLOT HEADS, USE SCREW (AS MODIFIED) OR BOLT (AS MODIFIED).
CAGE Information
| Code | Company |
|---|---|
| 01226 | BARRY WRIGHT CORPORATION DBA VLIER D |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AAVA | POINT DIAMETER | 0.185 INCHES NOMINAL |
| AASK | HEAD STYLE | KNURLED NO. 1 |
| AASL | HEAD DIAMETER | 1.000 INCHES NOMINAL |
| AAUY | POINT LENGTH | 0.156 INCHES NOMINAL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-637 FED SPEC 1ST MATERIAL RESPONSE OVERALL OR SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AASU | HEAD HEIGHT | 0.375 INCHES NOMINAL |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| MATT | MATERIAL | STEEL COMP 1213 OVERALL OR STEEL COMP 4140 OVERALL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CWDK | POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AAJD | THREAD CLASS | 2A |
| AASA | THREAD LENGTH | 1.344 INCHES MINIMUM |
| CTLL | POINT SWIVEL INCLUDED ANGLE | 7.5 DEGREES NOMINAL |
| AASB | FASTENER LENGTH | 1.500 INCHES NOMINAL |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| ABQJ | POINT STYLE | UNIVERSAL |