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National Stock Number: 5305-01-369-3505
Federal Supply Class: 5305
National Item Identification Number: 013693505
Description: SCREW,CAP,HEXAGON HEAD
Detail: An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.
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Manufacturer Information:
53A-00-193-6 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
FASTENER LENGTH | 3.406 INCHES MINIMUM AND 3.500 INCHES MAXIMUM | HEAD HEIGHT | 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM | HEAD STYLE | HEXAGON | LOCKING FEATURE | STRIP THREADS | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | NICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL | MATERIAL | PLASTIC POLYAMIDE (NYLON) LOCKING FEATURE | MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH | NOMINAL THREAD DIAMETER | 0.500 INCHES | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | WIDTH BETWEEN FLATS | 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 1.250 INCHES MINIMUM AND 1.440 INCHES MAXIMUM | THREAD QUANTITY PER INCH | 13 | THREAD SERIES DESIGNATOR | UNC |
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