5305-01-355-6943 SCREW,DRIVE Index 5305-01-355-6945 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-355-6944

Federal Supply Class:
5305

National Item Identification Number:
013556944

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:
845-6640841-TA-5253711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
FASTENER LENGTH0.656 INCHES NOMINAL
HEAD DIAMETER0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
HEAD HEIGHT0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQN281 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALNICKEL ALLOY R-405 OR NICKEL ALLOY 400 OVERALL
NOMINAL THREAD DIAMETER0.164 INCHES
WIDTH ACROSS FLATS0.141 INCHES NOMINAL
THREAD LENGTH0.219 INCHES NOMINAL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNC
THREAD QUANTITY PER INCH32


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