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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
56232 LOCKHEED MARTIN CORPORATION DBA LOCK

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AATB WIDTH BETWEEN FLATS 1.125 INCHES NOMINAL
CWYB SHOULDER SHAPE ROUND ALL SHOULDERS
AASU HEAD HEIGHT 0.562 INCHES NOMINAL
MATT MATERIAL STEEL COMP 304 OVERALL
AHYM NOMINAL THREAD DIAMETER 0.250 INCHES
ABQJ POINT STYLE FLAT
AAJF THREAD DIRECTION RIGHT-HAND
AASB FASTENER LENGTH 1.515 INCHES NOMINAL
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
AASK HEAD STYLE WING NO. 3
MDCL MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
FEAT SPECIAL FEATURES THREAD RELIEF GROOVE 0.109 IN. W BY 0.180 IN. MAX DIA
CMLP THREAD QUANTITY PER INCH 20
AASA THREAD LENGTH 0.453 INCHES MAXIMUM

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