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National Stock Number:
5305-00-389-8133
Federal Supply Class:
5305
National Item Identification Number:
003898133
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:
| 5305003898133 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | | 7266871 | 19204 | ARMY, UNITED STATES DEPARTMENT OF THE | | 7266871 | 19205 | SPRINGFIELD ARMORY |
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Techincal Specification:
| FASTENER LENGTH | 0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM | | HARDNESS RATING | 42.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL | | HEAD DIAMETER | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM | | HEAD HEIGHT | 0.195 INCHES MINIMUM AND 0.200 INCHES MAXIMUM | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL COMP 6150 OR STEEL COMP 8645 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SPECIAL FEATURES | 2 WRENCH SLOTS ON PERIPHERY OPPOSITE FLATS 0.062 INCH WIDE BY 0.030 INCH DEEP BY 45 DEGREE RADIUS | | WIDTH ACROSS FLATS | 0.187 INCHES MINIMUM AND 0.191 INCHES MAXIMUM | | SURFACE TREATMENT | PHOSPHATE OVERALL | | THREAD CLASS | 3A | | THREAD LENGTH | 0.250 INCHES MINIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNC |
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