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 |
|---|---|
| 03538 | LOCKHEED MARTIN CORPORATION DBA MS2 |
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASL | HEAD DIAMETER | 0.880 INCHES NOMINAL |
| AASK | HEAD STYLE | KNURLED NO. 4 |
| AASA | THREAD LENGTH | 0.560 INCHES MINIMUM |
| FEAT | SPECIAL FEATURES | UNDERCUT UNTHREADED PORTION 0.230 IN. DIA 1.700 IN. LONG |
| MATT | MATERIAL | STEEL COMP 303 OVERALL |
| ABQJ | POINT STYLE | CUP |
| CMLP | THREAD QUANTITY PER INCH | 18 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUB | HOLE DIAMETER | 0.062 INCHES NOMINAL |
| AAUY | POINT LENGTH | 0.180 INCHES NOMINAL |
| ASXK | HOLE QUANTITY | 1 |
| AASU | HEAD HEIGHT | 0.560 INCHES NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AAJD | THREAD CLASS | 2A |
| BQDM | HOLE TYPE | DRILLED |
| AASB | FASTENER LENGTH | 2.440 INCHES NOMINAL |
| CRHC | HOLE CONFIGURATION STYLE | ROUND |
| AHYM | NOMINAL THREAD DIAMETER | 0.312 INCHES |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |