5305-01-246-3860 SCREW,CAP,SOCKET HEAD Index 5305-01-246-3862 SCREW,TAPPING

National Stock Number:
5305-01-246-3861

Federal Supply Class:
5305

National Item Identification Number:
012463861

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:
5829216-253711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.500 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.812 INCHES MINIMUM
FASTENER LENGTH1.735 INCHES MINIMUM AND
1.781 INCHES MAXIMUM
MATERIALNICKEL ALLOY K-500 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.735 INCHES MINIMUM AND
0.750 INCHES MAXIMUM
HEAD HEIGHT0.492 INCHES MINIMUM AND
0.500 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.375 INCHES MINIMUM AND
0.379 INCHES MAXIMUM
LOCKING FEATUREPATCH OR
PELLET OR
STRIP THREADS


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