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 |
|---|---|
| 87557 | LOCKHEED CORP LOCKHEED ELECTRONICS C |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| AASK | HEAD STYLE | KNURLED NO. 1 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| AASU | HEAD HEIGHT | 0.100 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| AASA | THREAD LENGTH | 0.638 INCHES MINIMUM AND 0.740 INCHES MAXIMUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | PD3330 FSCM 87557 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| MATT | MATERIAL | STEEL COMP 303SE OVERALL OR STEEL COMP 303 OVERALL |
| ABQJ | POINT STYLE | FLAT |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AASB | FASTENER LENGTH | 0.700 INCHES MINIMUM AND 0.740 INCHES MAXIMUM |
| AAJD | THREAD CLASS | 2A |
| AASL | HEAD DIAMETER | 0.740 INCHES MINIMUM AND 0.780 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |