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National Stock Number:
5305-01-309-7044
Federal Supply Class:
5305
National Item Identification Number:
013097044
Description:
SCREW,CAP,SOCKET HEAD
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.
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Manufacturer Information:
| 6242857-38 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.000 INCHES MINIMUM | | FASTENER LENGTH | 1.500 INCHES NOMINAL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | SURFACE TREATMENT | CERAMIC OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-81751,TY 1 CL 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | COLOR | GRAY/GREY OVERALL | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | MINIMUM YIELD STRENGTH | 80000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 0.375 INCHES NOMINAL | | HEAD HEIGHT | 0.250 INCHES NOMINAL | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.178 INCHES MINIMUM AND | | 0.198 INCHES MAXIMUM | | SPECIAL FEATURES | KNURLED HEAD OPTIONAL |
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