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National Stock Number:
5305-01-441-8589
Federal Supply Class:
5305
National Item Identification Number:
014418589
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:
| 211082870 | 53711 | NAVAL SEA SYSTEMS COMMAND | | D2000019432-TD-H2126-5 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| FASTENER LENGTH | 3.250 INCHES NOMINAL | | HARDNESS RATING | 80.0 ROCKWELL B MINIMUM FASTENER | | HEAD HEIGHT | 0.226 INCHES MINIMUM AND 0.268 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | LOCKING FEATURE | PATCH OR PELLET OR STRIP THREADS | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FASTENER | | MATERIAL | NICKEL ALLOY 400 FASTENER | | MATERIAL | PLASTIC POLYAMIDE NYLON LOCKING FEATURE | | MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH | | MINIMUM YIELD STRENGTH | 40000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | WIDTH BETWEEN FLATS | 0.544 INCHES MINIMUM AND 0.562 INCHES MAXIMUM | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.000 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) | | THREAD QUANTITY PER INCH | 16 |
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