5305-01-431-8747 SETSCREW Index 5342-01-431-8749 MOUNT,RESILIENT

National Stock Number:
5305-01-431-8748

Federal Supply Class:
5305

National Item Identification Number:
014318748

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:
21109471653711NAVAL SEA SYSTEMS COMMAND
801-6406768-3653711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNRC
NOMINAL THREAD DIAMETER0.438 INCHES
THREAD QUANTITY PER INCH14
THREAD CLASS3A
FASTENER LENGTH2.500 INCHES NOMINAL
MATERIALSTEEL OVERALL
PLASTIC POLYAMIDE LOCKING FEATURE
HEAD STYLEFLAT FILLISTER
HEAD DIAMETER0.642 INCHES MINIMUM AND
0.656 INCHES MAXIMUM
HEAD HEIGHT0.430 INCHES MINIMUM AND
0.438 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.375 INCHES NOMINAL
LOCKING FEATUREPATCH OR
PELLET OR
STRIP THREADS


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