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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
02310 PATTONAIR USA INC UNISEAL DIV

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CSNG EXTERNALLY RELIEVED BODY DIAMETER QUANTITY 1
ABQZ INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
AAWC FIRST DIAMETER FROM HEAD 0.075 INCHES MINIMUM AND 0.078 INCHES MAXIMUM
ABQJ POINT STYLE FLAT
AAWH DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AASU HEAD HEIGHT 0.075 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
AHYM NOMINAL THREAD DIAMETER 0.112 INCHES
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
MATT MATERIAL STEEL COMP 302 OVERALL OR STEEL COMP 304 OVERALL OR STEEL COMP 305 OVERALL OR NICKEL ALLOY OVERALL
AASB FASTENER LENGTH 0.735 INCHES MINIMUM AND 0.780 INCHES MAXIMUM
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SFTT SURFACE TREATMENT PASSIVATE OVERALL
AASL HEAD DIAMETER 0.228 INCHES MINIMUM AND 0.238 INCHES MAXIMUM
AASK HEAD STYLE PAN
CMLP THREAD QUANTITY PER INCH 40
AASA THREAD LENGTH 0.220 INCHES MINIMUM AND 0.295 INCHES MAXIMUM

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