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National Stock Number:
5305-01-418-3126
Federal Supply Class:
5305
National Item Identification Number:
014183126
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:
| 021-17055 | 66935 | JOHNSON CONTROLS NAVY SYSTEMS, LLC | | 021-17055-000 | 66935 | JOHNSON CONTROLS NAVY SYSTEMS, LLC | | 11-540-003 | 51729 | DRESSER, INC. DBA DRESSER ROOTS BLOWERS & COMPRESSORS DIV DRESSER ROOTS | | 1/4-20UNC-2A X 1/2 LG | 53711 | NAVAL SEA SYSTEMS COMMAND | | 076-64523-000 FIND 82 | 66935 | JOHNSON CONTROLS NAVY SYSTEMS, LLC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | THREAD LENGTH | 0.500 INCHES NOMINAL | | FASTENER LENGTH | 0.500 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | PLASTIC POLYAMIDE LOCKING FEATURE | | HEAD STYLE | HEXAGON | | THREAD DIRECTION | RIGHT-HAND | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 2A | | HEAD HEIGHT | 0.150 INCHES MINIMUM AND | | 0.163 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND | | 0.438 INCHES MAXIMUM | | LOCKING FEATURE | PATCH OR | | PELLET OR | | STRIP THREADS |
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