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Part Number:
NSN:
NIIN:
Item Name:
SCREW , MACHINE

Definition:

AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN./1.5 MM) OR LARGER, DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH (EXCLUDING INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE TYPES), IN SIZES BELOW NO. 10 (0.190 IN./5 MM). NO. 10 AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE TYPES), BUT MAY ALSO BE DESIGNED FOR EXTERNAL WRENCHING. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; AND SCREW, ASSEMBLED WASHER. SEE ALSO, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; AND SCREW, CAP SOCKET HEAD.

CAGE Information

Code Company
80205 NATIONAL AEROSPACE STANDARDS COMMITT

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AASU HEAD HEIGHT 0.070 INCHES MINIMUM
THSD THREAD SERIES DESIGNATOR UNJC
AASL HEAD DIAMETER 0.205 INCHES MINIMUM
AASA THREAD LENGTH 1.638 INCHES MINIMUM
AAJD THREAD CLASS 3A
CYAU SCREW MATERIAL STEEL
ABQZ INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
AAUM LOCKING FEATURE PATCH
AAJF THREAD DIRECTION RIGHT-HAND
AHYM NOMINAL THREAD DIAMETER 0.112 INCHES
AASB FASTENER LENGTH 1.688 INCHES MINIMUM
CYAV LOCKING FEATURE MATERIAL PLASTIC POLYHEXAMETHYLENE ADIPAMIDE
AASK HEAD STYLE PAN
CMLP THREAD QUANTITY PER INCH 40

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