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Part Number

Part Number:
NSN:
NIIN:
Item Name:
SCREW , CAP , HEXAGON HEAD

Definition:

AN EXTERNALLY THREADED FASTENER DESIGNED FOR INSERTION INTO HOLES IN ASSEMBLED PARTS, FOR MATING WITH A PREFORMED INTERNAL THREAD AND FOR TIGHTENING OR RELEASING BY TORQUING THE HEAD. THE THREADED AND UNTHREADED PORTIONS ARE BOTH OF THE SAME NOMINAL DIAMETER OF 0.190 INCH (5 MM) OR LARGER. HEAD DIMENSIONS AND SIZES OF THREADED AND UNTHREADED PORTIONS SHALL CONFORM TO INTERNATIONALLY RECOGNIZED FASTENER STANDARDS. THE THREAD LENGTH BEING THE CONTROLLED DIMENSION, THE GRIP LENGTH IS NOT SPECIFIED. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; AND SCREW, CAP, SOCKET HEAD.

CAGE Information

Code Company
26233 NYLOK CORPORATION DBA NYLOK WESTERN

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AATB WIDTH BETWEEN FLATS 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
AAUM LOCKING FEATURE PATCH THREADS
AAJD THREAD CLASS 3A
AHYM NOMINAL THREAD DIAMETER 0.500 INCHES
AAJF THREAD DIRECTION RIGHT-HAND
MATT MATERIAL NICKEL ALLOY K-500 FASTENER OR NICKEL ALLOY 400 FASTENER OR NICKEL ALLOY R-405 FASTENER OR PLASTIC POLYAMIDE LOCKING FEATURE
AASB FASTENER LENGTH 0.818 INCHES MINIMUM AND 0.880 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNF
AASK HEAD STYLE HEXAGON
AASU HEAD HEIGHT 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM
MATT MATERIAL NICKEL ALLOY 502 FASTENER
AASA THREAD LENGTH 0.718 INCHES MINIMUM AND 0.880 INCHES MAXIMUM
CMLP THREAD QUANTITY PER INCH 20

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