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National Stock Number:
5305-00-143-9781
Federal Supply Class:
5305
National Item Identification Number:
001439781
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:
| 26631400C87 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 2663140OC87 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | 49651-79X1-87 | 96169 | ELECTRIC BOAT CORPORATION | | 803-2177917-2-17 | 30263 | PIMA VALVE, LLC | | 803-2177917-2-17 | 80064 | NAVAL SHIP SYSTEMS COMMAND | | MIL-DTL-1222J | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | MIL-S-1222 TY1 GR 400 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| FASTENER LENGTH | 2.500 INCHES NOMINAL | | HARDNESS RATING | 80.0 ROCKWELL B MINIMUM OVERALL | | HEAD HEIGHT | 0.302 INCHES MINIMUM AND 0.364 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY 400 OVERALL | | MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH | | MINIMUM YIELD STRENGTH | 40000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | WIDTH BETWEEN FLATS | 0.725 INCHES MINIMUM AND 0.750 INCHES MAXIMUM | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.250 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 13 | | THREAD SERIES DESIGNATOR | UNC |
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