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National Stock Number:
5305-01-297-9013
Federal Supply Class:
5305
National Item Identification Number:
012979013
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:
| 6243040 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 6243040-44 | 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 | 0.664 INCHES MINIMUM AND | | 0.765 INCHES MAXIMUM | | FASTENER LENGTH | 0.735 INCHES MINIMUM AND | | 0.765 INCHES MAXIMUM | | MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURE | | STEEL COMP 302 OR | | STEEL COMP 304 OR | | STEEL COMP 305 OR | | STEEL COMP 316 OR | | STEEL COMP 384 OR | | STEEL COMP XM-7 FASTENER | | SURFACE TREATMENT | CERAMIC FASTENER | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-81751 TY 1 CL 4 MIL SPEC SINGLE TREATMENT RESPONSE FASTENER | | MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 0.365 INCHES MINIMUM AND | | 0.375 INCHES MAXIMUM | | HEAD HEIGHT | 0.244 INCHES MINIMUM AND | | 0.250 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.187 INCHES MINIMUM AND | | 0.190 INCHES MAXIMUM | | LOCKING FEATURE | STRIP OR | | PELLET OR | | PATCH THREADS |
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