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National Stock Number:
5305-01-497-8056
Federal Supply Class:
5305
National Item Identification Number:
014978056
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:
| 10700410-103 | 56161 | GENERAL DYNAMICS LAND SYSTEMS - CANADA CORPORATION | | 218462 | 10237 | CADILLAC GAGE TEXTRON INC. | | B18231B12055N | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED |
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Techincal Specification:
| EXTERNAL THREAD TOLERANCE CLASS | 6G | | FASTENER LENGTH | 55.00 MILLIMETERS NOMINAL | | HEAD HEIGHT | 7.24 MILLIMETERS MINIMUM AND 7.76 MILLIMETERS MAXIMUM | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 12.0 MILLIMETERS | | WIDTH BETWEEN FLATS | 17.73 MILLIMETERS MINIMUM AND 18.00 MILLIMETERS MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633, TYII, CL10.9 ASSN STD ALL TREATMENT RESPONSES OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 16.2 MILLIMETERS MINIMUM AND 25.0 MILLIMETERS MAXIMUM | | THREAD PITCH IN MILLIMETERS | 1.75 | | THREAD SERIES DESIGNATOR | M |
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