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Part Number

Part Number:
NSN:
NIIN:
Item Name:
SCREW , EXTERNALLY RELIEVED BODY

Definition:

AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, AND WHOSE UNTHREADED PORTION HAS BEEN MACHINED OR GROUND IN ONE OR MORE PLACES OR OVER ITS ENTIRE LENGTH TO A MAXIMUM DIAMETER LESS THAN THE MINIMUM PITCH DIAMETER OF THE THREAD (EXCLUDES UNDERCUT FOR THREAD RELIEF). IT IS NO. 0 (0.060 IN.) (1.5 MM) OR LARGER, AND IS DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND MULTIPLE SPLINE TYPES) OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND 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. SEE ALSO BOLT, EXTERNALLY RELIEVED BODY AND BOLT, INTERNAL WRENCHING.

CAGE Information

Code Company
18677 SCANBE MFG CO DIV OF ZERO CORP

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
ABQZ INTERNAL DRIVE STYLE SLOT
ABQZ INTERNAL DRIVE STYLE SLOT
MATT MATERIAL STEEL COMP 303 OVERALL
CSNG EXTERNALLY RELIEVED BODY DIAMETER QUANTITY 1
AAWH DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER 0.531 INCHES NOMINAL
AAJF THREAD DIRECTION RIGHT-HAND
AHYM NOMINAL THREAD DIAMETER 0.164 INCHES
AASK HEAD STYLE FLAT CHAMFER
AASL HEAD DIAMETER 0.312 INCHES NOMINAL
AASU HEAD HEIGHT 0.312 INCHES NOMINAL
AASA THREAD LENGTH 0.250 INCHES MINIMUM
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
AAWC FIRST DIAMETER FROM HEAD 0.114 INCHES NOMINAL
MDCL MATERIAL DOCUMENT AND CLASSIFICATION AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CMLP THREAD QUANTITY PER INCH 32
SFTT SURFACE TREATMENT PASSIVATE OVERALL
AASB FASTENER LENGTH 0.781 INCHES NOMINAL

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