5325-01-444-0513 INSERT,SCREW THREAD Index 5320-01-444-0515 PIN-RIVET

National Stock Number:
5305-01-444-0514

Federal Supply Class:
5305

National Item Identification Number:
014440514

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:
21105440453711NAVAL SEA SYSTEMS COMMAND
752-6406846-4253711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNRC
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.130 INCHES NOMINAL
FASTENER LENGTH3.250 INCHES NOMINAL
MATERIALSTEEL OVERALL
PLASTIC POLYAMIDE LOCKING FEATURE
SURFACE TREATMENTZINC OVERALL
HEAD STYLEFLAT FILLISTER
HEAD DIAMETER0.457 INCHES MINIMUM AND
0.469 INCHES MAXIMUM
HEAD HEIGHT0.306 INCHES MINIMUM AND
0.312 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.250 INCHES NOMINAL
LOCKING FEATUREPATCH OR
PELLET OR
STRIP THREADS


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