5305-01-320-7139 SCREW,EXTERNALLY RELIEVED BODY Index 5305-01-320-7141 SETSCREW

National Stock Number:
5305-01-320-7140

Federal Supply Class:
5305

National Item Identification Number:
013207140

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:
810-4385050 PIECE 6680064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.750 INCHES
THREAD QUANTITY PER INCH10
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.300 INCHES MINIMUM AND
2.500 INCHES MAXIMUM
FASTENER LENGTH2.500 INCHES NOMINAL
MATERIALNICKEL ALLOY K-500 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-286,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER1.107 INCHES MINIMUM AND
1.125 INCHES MAXIMUM
HEAD HEIGHT0.740 INCHES MINIMUM AND
0.750 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.625 INCHES NOMINAL
LOCKING FEATUREPATCH OR
PELLET OR
STRIP THREADS


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