5310-01-433-8491 WASHER,FLAT Index 5305-01-433-8493 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-433-8492

Federal Supply Class:
5305

National Item Identification Number:
014338492

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:
21107846353711NAVAL SEA SYSTEMS COMMAND
6405354 FIND 10253711NAVAL SEA SYSTEMS COMMAND
801-6405354 FIND 10253711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
FASTENER LENGTH2.250 INCHES NOMINAL
HEAD DIAMETER0.735 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
HEAD HEIGHT0.492 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
HEAD STYLEFLAT FILLISTER
INTERNAL DRIVE STYLEHEXAGON
LOCKING FEATUREPATCH OR PELLET OR STRIP THREADS
MATERIALPLASTIC POLYAMIDE NYLON LOCKING FEATURE
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.890 INCHES MINIMUM AND 2.250 INCHES MAXIMUM
THREAD QUANTITY PER INCH13
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS0.375 INCHES NOMINAL


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