5310-01-149-9653 WASHER,LOCK Index 5305-01-149-9657 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-149-9656

Federal Supply Class:
5305

National Item Identification Number:
011499656

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:
77C707911P12403538LOCKHEED MARTIN CORPORATION


Techincal Specification:
FASTENER LENGTH0.740 INCHES MINIMUM AND 0.770 INCHES MAXIMUM
HEAD DIAMETER0.562 INCHES NOMINAL
HEAD HEIGHT0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 316 OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES
THREAD QUANTITY PER INCH16
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS0.312 INCHES MINIMUM AND 0.315 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A
THREAD LENGTH0.615 INCHES MINIMUM AND 0.770 INCHES MAXIMUM


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