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National Stock Number:
5305-01-469-6307
Federal Supply Class:
5305
National Item Identification Number:
014696307
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:
| 256202 PC22 | 43689 | HUNTINGTON INGALLS INC | | 256202 PC22 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| EXTENDED WASHER DIAMETER | 0.281 INCHES NOMINAL | | EXTERNAL THREAD TOLERANCE CLASS | 3A | | FASTENER LENGTH | 0.500 INCHES NOMINAL | | HEAD HEIGHT | 0.125 INCHES NOMINAL | | HEAD STYLE | CHAMFER FLANGE | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | NONSTANDARD THREAD PITCH DIAMETER | +0.2350 TO 0.2650 INCHES | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.375 INCHES NOMINAL | | THREAD PITCH IN MILLIMETERS | 1.27 | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) | | WIDTH ACROSS FLATS | 0.250 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.250 INCHES NOMINAL |
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