5305-00-167-2921 SCREW,TAPPING Index 5305-00-167-2923 SCREW,TAPPING

National Stock Number:
5305-00-167-2922

Federal Supply Class:
5305

National Item Identification Number:
001672922

Description:
SCREW,TAPPING

Detail:
A hardened externally threaded fastener whose thread extends to the bearing surface of the head. The thread may be fluted or otherwise designed to cut or form its own mating thread. Excludes SCREW, ASSEMBLED WASHER.


Manufacturer Information:
AN531-8R1688044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
NONMACHINE THREAD STYLEDOG TYPE (TYPE B OR C)
NONMACHINE NOMINAL THREAD DIAMETER0.163 INCHES
FASTENER LENGTH1.000 INCHES NOMINAL
MATERIALSTEEL COMP 4130 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-685,CONDITION N FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OR
ZINC OVERALL
HEAD STYLEFLAT COUNTERSUNK
HEAD DIAMETER0.320 INCHES MINIMUM AND
0.332 INCHES MAXIMUM
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND
82.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE88044
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEAN531-8R16


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