4320-99-442-6503 4010-99-442-6506

National Stock Number:
5305-99-442-6504

Federal Supply Class:
5305

National Item Identification Number:
994426504

Description:
SCREW,CAP,SOCKET HE

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:
BS4183-PART 1K7766BRITISH STANDARDS INSTITUTION
ML160-0504K0349M L AVIATION LTD INCORPORATING M L WALLOP DEFENCE SYSTEMS LTD


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