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Part Number

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
96725 SPIKE MFG CO

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AHYM NOMINAL THREAD DIAMETER 0.190 INCHES
CYAW SCREW MATERIAL DOCUMENT AND CLASSIFICATION SAE ASSN STD ALL MATERIAL RESPONSES
CRSQ COUNTERSINK ANGLE 100.0 DEGREES NOMINAL
CYAU SCREW MATERIAL STEEL COMP 4037 OR STEEL COMP 4140 OR STEEL COMP 4340
ABQZ INTERNAL DRIVE STYLE SLOT
AASA THREAD LENGTH 0.314 INCHES MINIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE FLAT COUNTERSUNK
THSD THREAD SERIES DESIGNATOR UNF
AASL HEAD DIAMETER 0.276 INCHES NOMINAL
AAJD THREAD CLASS 2A
CQBC MINIMUM TENSILE STRENGTH 150000 POUNDS PER SQUARE INCH
AASB FASTENER LENGTH 0.594 INCHES NOMINAL
CQFM HARDNESS RATING 33.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM
CYBA SCREW SURFACE TREATMENT CADMIUM
CMLP THREAD QUANTITY PER INCH 32

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