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National Stock Number:
5305-01-497-5451
Federal Supply Class:
5305
National Item Identification Number:
014975451
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:
| 1.000-08UNC-2A X 3.750LG NICUAL | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | 342-7067317-33 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 67-74-8375 | 96169 | ELECTRIC BOAT CORPORATION | | H643-6502-33 | 96169 | ELECTRIC BOAT CORPORATION |
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Techincal Specification:
| FASTENER LENGTH | 3.750 INCHES NOMINAL | | HEAD HEIGHT | 0.591 INCHES MINIMUM AND 0.627 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | LOCKING FEATURE | PATCH THREADS OR PELLET THREADS OR STRIP THREADS | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM F468,GR 500 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY 500 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 1.000 INCHES | | SPECIAL FEATURES | TECH DATA NOT AUTHORIZED FOR RELEASE OUTSIDE OF U.S.; ITEM IS SELF-LOCKING; USED ON SNORKEL INDUCTION MAST ASSEMBLY; NSSN CLASS SUBMARINE | | WIDTH BETWEEN FLATS | 1.469 INCHES MINIMUM AND 1.500 INCHES MAXIMUM | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 2.250 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 8 | | THREAD SERIES DESIGNATOR | UNC |
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