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National Stock Number:
5305-99-528-7730
Federal Supply Class:
5305
National Item Identification Number:
995287730
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:
| 5305-99-251-8225 | K1806 | MINISTRY OF DEFENCE, DE&S UNDERWATER AND ELECTRONIC WARFARE PT (UEW IPT) | | 701952-1003D | K0256 | CLYDE PUMPS LTD | | 991/4/01485/013 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH | | 701952D | K0256 | CLYDE PUMPS LTD | | 991/4/01485/013 | K3902 | BAE SYSTEMS MARITIME SERVICES | | BS1768 | K7766 | BRITISH STANDARDS INSTITUTION | | BS1768-TABLE 1 3/8 UNC X 1 | K7766 | BRITISH STANDARDS INSTITUTION |
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Techincal Specification:
| FASTENER LENGTH | 0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM | | HEAD HEIGHT | 0.233 INCHES MINIMUM OR 0.243 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | BS 3111 TYPE 1 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL OR BS 3111 TYPE 2 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL OR BS 3111 TYPE 4 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL OR BS 970, PART 1,GRADE 080-40 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL OR BS 970,PART 1,GRADE 150-36 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | WIDTH BETWEEN FLATS | 0.554 INCHES MINIMUM AND AC0.562 INCHES OUTSIDE DIAMETER | | THREAD CLASS | 2A | | THREAD LENGTH | 0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 16 | | THREAD SERIES DESIGNATOR | UNC |
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