5306-01-296-2850 BOLT,MACHINE Index 5305-01-296-2852 SCREW,TAPPING

National Stock Number:
5305-01-296-2851

Federal Supply Class:
5305

National Item Identification Number:
012962851

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.


Manufacturer Information:
6242953-LE853711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNRC
NOMINAL THREAD DIAMETER0.375 INCHES
THREAD QUANTITY PER INCH16
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.137 INCHES MINIMUM
FASTENER LENGTH0.470 INCHES MINIMUM AND
0.500 INCHES MAXIMUM
MATERIALPLASTIC POLYAMIDE LOCKING FEATURE
STEEL COMP 302 OR
STEEL COMP 304 OR
STEEL COMP 305 OR
STEEL COMP 316 OR
STEEL COMP XM-7 FASTENER
SURFACE TREATMENTCADMIUM FASTENER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 1 CL 2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
COLORGRAY/GREY FASTENER
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.550 INCHES MINIMUM AND
0.562 INCHES MAXIMUM
HEAD HEIGHT0.368 INCHES MINIMUM AND
0.375 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.312 INCHES MINIMUM AND
0.316 INCHES MAXIMUM
LOCKING FEATUREPELLET OR
STRIP OR
PATCH THREADS


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