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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
SCY13 E.C.A ETABLISSEMENT CENTRAL DES APPR

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AHYM NOMINAL THREAD DIAMETER 0.190 INCHES
CYAU SCREW MATERIAL IRON
CQFM HARDNESS RATING 248.0 BRINELL STANDARD MINIMUM AND 321.0 BRINELL STANDARD MAXIMUM
ABQZ INTERNAL DRIVE STYLE TORQUE SET
AAJD THREAD CLASS 3A
AASA THREAD LENGTH 0.250 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
AASB FASTENER LENGTH 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
CYBA SCREW SURFACE TREATMENT PASSIVATE
AASL HEAD DIAMETER 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AASU HEAD HEIGHT 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNF
CYAW SCREW MATERIAL DOCUMENT AND CLASSIFICATION AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE
CQBC MINIMUM TENSILE STRENGTH 140000 POUNDS PER SQUARE INCH
CMLP THREAD QUANTITY PER INCH 32
AASK HEAD STYLE PAN

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