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National Stock Number:
5305-01-398-4030
Federal Supply Class:
5305
National Item Identification Number:
013984030
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:
| 88-22745 | 30554 | DEPARTMENT OF DEFENSE PROJECT MANAGER-MOBILE ELECTRIC POWER |
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Techincal Specification:
| EXTENDED WASHER THICKNESS | 0.035 INCHES MINIMUM AND 0.065 INCHES MAXIMUM | | EXTENDED WASHER DIAMETER | 0.720 INCHES MINIMUM AND 0.780 INCHES MAXIMUM | | FASTENER LENGTH | 1.500 INCHES NOMINAL | | HEAD HEIGHT | 0.270 INCHES MINIMUM AND 0.295 INCHES MAXIMUM | | HEAD STYLE | HEXAGON EXTENDED WASHER | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633, SC 2, TYPE 1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.750 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 16 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) | | SPECIAL FEATURES | TWO SLOTS 180 DEGREES APART, 0.090 IN. NOM DEEP, 0.120 IN. NOM WIDE, 0.750 INM MOM LG FROM END OPPOSITE THE HEAD | | WIDTH BETWEEN FLATS | 0.552 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
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