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 |
|---|---|
| 04891 | AIRCO INDUSTRIAL GASES DIV OF AIRCO |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASU | HEAD HEIGHT | 0.500 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.500 INCHES NOMINAL |
| AAJD | THREAD CLASS | 1A |
| AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
| AASB | FASTENER LENGTH | 0.562 INCHES NOMINAL |
| FEAT | SPECIAL FEATURES | HOLE DRILLED PARALEL TO THREADED SURFACES |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AASA | THREAD LENGTH | 0.406 INCHES MINIMUM |
| CMLP | THREAD QUANTITY PER INCH | 13 |