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National Stock Number:
5305-01-618-7422
Federal Supply Class:
5305
National Item Identification Number:
016187422
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:
| 4076871132 | 05606 | GENERAL DYNAMICS-OTS, INC. |
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Techincal Specification:
| FASTENER LENGTH | 20.0 MILLIMETERS NOMINAL | | HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 12.1 MILLIMETERS MINIMUM AND 12.9 MILLIMETERS MAXIMUM | | HEAD STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM F568M ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL PROPERTY CLASS 8.8 OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, HEXAGON HEAD, CAP | | PROPRIETARY CHARACTERISTICS | PACS | | MINIMUM TENSILE STRENGTH | 1040 MEGAPASCALS | | MINIMUM YIELD STRENGTH | 940 MEGAPASCALS | | NOMINAL THREAD DIAMETER | 20.0 MILLIMETERS | | WIDTH BETWEEN FLATS | 29.2 MILLIMETERS MINIMUM AND 30.0 MILLIMETERS MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM F1941M, TYPE 5DT ASSN STD SINGLE TREATMENT RESPONSE OR ASTM B633, SC, TYPE VI ASSN STD SINGLE TREATMENT RESPONSE OR ASTM F1137, GRADE 111 ZINC PHOSPHATE ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | THREAD CLASS | 6G | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 32.5 MILLIMETERS NOMINAL | | THREAD SERIES DESIGNATOR | M | | THREAD PITCH IN MILLIMETERS | 2.5 |
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