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National Stock Number: 5305-01-321-4108
Federal Supply Class: 5305
National Item Identification Number: 013214108
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:
124221-4-1 | 56878 | SPS TECHNOLOGIES, LLC | 124221-4-4 | 80539 | SPS TECHNOLOGIES, LLC | 5906712 | 79318 | MEGGITT NORTH HOLLYWOOD INC | 5906712 | 99167 | HAMILTON SUNDSTRAND CORPORATION |
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Techincal Specification:
FASTENER LENGTH | 0.516 INCHES MINIMUM AND 0.546 INCHES MAXIMUM | HEAD HEIGHT | 0.156 INCHES NOMINAL | HEAD STYLE | HEXAGON | HOLE CONFIGURATION STYLE | HEXAGON LONGITUDINAL HOLE | HOLE DIAMETER | 0.046 INCHES MINIMUM AND 0.056 INCHES MAXIMUM | HOLE QUANTITY | 1 | HOLE TYPE | DRILLED | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5663 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | NICKEL ALLOY 718 OVERALL | PROPRIETARY CHARACTERISTICS | PACS | NOMINAL THREAD DIAMETER | 0.250 INCHES | WIDTH BETWEEN FLATS | 0.439 INCHES MAXIMUM | THREAD CLASS | 3A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.445 INCHES MINIMUM | THREAD QUANTITY PER INCH | 28 | THREAD SERIES DESIGNATOR | UNJF |
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