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National Stock Number: 5305-01-331-7569
Federal Supply Class: 5305
National Item Identification Number: 013317569
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:
1/2-13UNC-2A X 4 1/4 IN. LG NICU | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED | 556-7666447 PC 16 | 53711 | NAVAL SEA SYSTEMS COMMAND | M1222RN8C268NANN | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | MIL-DTL-1222 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | MIL-S-1222 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | 77682-58X3 PIECE 20 | 96162 | CARGILL INC |
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Techincal Specification:
FASTENER LENGTH | 4.150 INCHES MINIMUM AND 4.330 INCHES MAXIMUM | HEAD HEIGHT | 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM | HEAD STYLE | HEXAGON | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | NICKEL ALLOY 400 OVERALL | NOMINAL THREAD DIAMETER | 0.500 INCHES | WIDTH BETWEEN FLATS | 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM | THREAD DIRECTION | RIGHT-HAND | THREAD CLASS | 2A | THREAD LENGTH | 1.250 INCHES MINIMUM | THREAD SERIES DESIGNATOR | UNC | THREAD QUANTITY PER INCH | 13 |
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