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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
78711 TELEPHONICS CORPORATION DBA COMMUNIC

Federal Supply Class

Title

SCREWS

Inclusions:

Exclusions:

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
MATT MATERIAL STEEL COMP 305 OVERALL OR STEEL COMP 302 OVERALL OR STEEL COMP 303 OVERALL OR STEEL COMP 304 OVERALL OR STEEL COMP 316 OVERALL
ABQJ POINT STYLE CONE
MDCL MATERIAL DOCUMENT AND CLASSIFICATION FED STD 66 FED STD ALL MATERIAL RESPONSES OVERALL
CSNG EXTERNALLY RELIEVED BODY DIAMETER QUANTITY 1
ABQZ INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
AASL HEAD DIAMETER 0.238 INCHES MINIMUM AND 0.279 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AASK HEAD STYLE FLAT COUNTERSUNK
CRSQ COUNTERSINK ANGLE 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
AAWH DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER 0.313 INCHES NOMINAL
AAWC FIRST DIAMETER FROM HEAD 0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM
THSD THREAD SERIES DESIGNATOR UNC
AAJD THREAD CLASS 2A
AASB FASTENER LENGTH 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
AASA THREAD LENGTH 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM
CMLP THREAD QUANTITY PER INCH 32
SFTT SURFACE TREATMENT PASSIVATE OVERALL
AHYM NOMINAL THREAD DIAMETER 0.138 INCHES

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