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National Stock Number:
5305-01-306-4844
Federal Supply Class:
5305
National Item Identification Number:
013064844
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:
| 38030-4F-8B | 56878 | SPS TECHNOLOGIES, LLC | | 38031-4F-8B | 20418 | DRS SUSTAINMENT SYSTEMS, INC. USE CAGE CODE 98255 FOR CATALOGING | | ES8388-02 | 20418 | DRS SUSTAINMENT SYSTEMS, INC. USE CAGE CODE 98255 FOR CATALOGING | | 38031-4F-8B | 98255 | DRS SUSTAINMENT SYSTEMS INC |
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Techincal Specification:
| COLOR | BLACK OVERALL | | FASTENER LENGTH | 0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL | | HEAD DIAMETER | 0.419 INCHES MINIMUM AND 0.437 INCHES MAXIMUM | | HEAD HEIGHT | 0.122 INCHES MINIMUM AND 0.132 INCHES MAXIMUM | | HEAD STYLE | PAN | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SURFACE TREATMENT | OXIDE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.399 INCHES MINIMUM AND 0.500 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNRF | | THREAD QUANTITY PER INCH | 28 | | WIDTH ACROSS FLATS | 0.1562 INCHES NOMINAL |
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