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 |
|---|---|
| 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASK | HEAD STYLE | KNURLED NO. 4 |
| FEAT | SPECIAL FEATURES | UNDERCUT TYPE POINT ON THREAD END |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASB | FASTENER LENGTH | 3.000 INCHES NOMINAL |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AAJD | THREAD CLASS | 2A |
| AHYM | NOMINAL THREAD DIAMETER | 0.375 INCHES |
| AASA | THREAD LENGTH | 2.750 INCHES NOMINAL |