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National Stock Number:
5305-01-062-6844
Federal Supply Class:
5305
National Item Identification Number:
010626844
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:
| 1/4-20X3/4NYLON | 83486 | ELCO INDUSTRIES INC | | 502644-0052 | 65597 | THALES USA, INC. | | FXNY-045-9 | 65664 | CATAMOUNT MFG INC | | FXNY-045NA | 85480 | BRADY UNITED STATES | | N-2520-3-4 | 85480 | BRADY UNITED STATES | | N2520-3-4 | 65597 | THALES USA, INC. |
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Techincal Specification:
| FASTENER LENGTH | 0.750 INCHES NOMINAL | | HEAD HEIGHT | 0.181 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL | PLASTIC OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | WIDTH BETWEEN FLATS | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.650 INCHES MINIMUM | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 20 |
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