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National Stock Number:
5305-01-473-0991
Federal Supply Class:
5305
National Item Identification Number:
014730991
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:
| 1269210-3 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | 1269210-3 | 53711 | NAVAL SEA SYSTEMS COMMAND | | M38CR420-16E | 26233 | NYLOK LLC | | NM138CR420-N16E | 26233 | NYLOK LLC |
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Techincal Specification:
| FASTENER LENGTH | 1.000 INCHES NOMINAL | | HEAD HEIGHT | 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | LOCKING FEATURE | PATCH THREADS OR STRIP THREADS | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A484 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | L-P-410 FED SPEC SINGLE MATERIAL RESPONSE LOCKING FEATURE | | MATERIAL | PLASTIC NYLON LOCKING FEATURE | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.750 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNC |
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