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National Stock Number: 5305-00-012-2427
Federal Supply Class: 5305
National Item Identification Number: 000122427
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:
122427 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | 122427 | 56442 | DIAMOND REO TRUCK CO | FFS85TYPE2STYLE10P | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY LENGTH | FASTENER LENGTH | 1.375 INCHES NOMINAL | HEAD HEIGHT | 0.312 INCHES NOMINAL | HEAD STYLE | HEXAGON | MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR 1 OR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | STEEL OVERALL | NOMINAL THREAD DIAMETER | 0.500 INCHES | NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 10P STYLE | WIDTH BETWEEN FLATS | 0.750 INCHES NOMINAL | SURFACE TREATMENT | CADMIUM OR ZINC OVERALL | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 1.250 INCHES MINIMUM | THREAD QUANTITY PER INCH | 13 | THREAD SERIES DESIGNATOR | UNC |
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