5305-01-423-5377 SCREW,SHOULDER Index 5305-01-423-5379 SCREW,MACHINE

National Stock Number:
5305-01-423-5378

Federal Supply Class:
5305

National Item Identification Number:
014235378

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:
21104173653711NAVAL SEA SYSTEMS COMMAND
585-6726901 FIN53711NAVAL SEA SYSTEMS COMMAND
751-6402201 FIND 1153711NAVAL SEA SYSTEMS COMMAND
751-6402301-8153711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNRC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.000 INCHES NOMINAL
FASTENER LENGTH1.000 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
PLASTIC POLYAMIDE LOCKING FEATURE
HEAD STYLEFLAT FILLISTER
HEAD DIAMETER0.365 INCHES MINIMUM AND
0.375 INCHES MAXIMUM
HEAD HEIGHT0.244 INCHES MINIMUM AND
0.250 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.188 INCHES NOMINAL
LOCKING FEATUREPATCH OR
PELLET OR
STRIP THREADS


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