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 |
|---|---|
| 80205 | NATIONAL AEROSPACE STANDARDS COMMITT |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| CMLP | THREAD QUANTITY PER INCH | 24 |
| MATT | MATERIAL | STEEL COMP 302 OVERALL |
| AASU | HEAD HEIGHT | 0.750 INCHES MINIMUM AND 0.780 INCHES MAXIMUM |
| AASA | THREAD LENGTH | 1.917 INCHES MINIMUM AND 2.000 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.667 INCHES MINIMUM AND 0.697 INCHES MAXIMUM |
| ZZZK | SPECIFICATION/STANDARD DATA | 80205-NAS1300 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| ABQJ | POINT STYLE | FLAT |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AAJD | THREAD CLASS | 2A |
| AASB | FASTENER LENGTH | 2.000 INCHES NOMINAL |
| AHYM | NOMINAL THREAD DIAMETER | 0.312 INCHES |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| AASK | HEAD STYLE | THUMB NO. 3 |