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National Stock Number:
5305-01-502-1993
Federal Supply Class:
5305
National Item Identification Number:
015021993
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:
| 6390820-204 | 31442 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 6390820-204 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 6395223 FIND 55 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 6395223 RN C08Y2 FIND 101 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| FASTENER LENGTH | 1.000 INCHES MINIMUM AND 1.048 INCHES MAXIMUM | | HEAD HEIGHT | 0.156 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL | TITANIUM ALLOY UNS R56400 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SPECIAL FEATURES | DISTRIBUTION STATEMENT D - DATA EXPORT RESTRICTED | | WIDTH BETWEEN FLATS | 0.437 INCHES NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2488B,TYPE 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.516 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNC |
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