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National Stock Number: 5305-01-498-1569
Federal Supply Class: 5305
National Item Identification Number: 014981569
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:
12387270-57 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
FASTENER LENGTH | 0.375 INCHES NOMINAL | HEAD DIAMETER | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM | HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM | HEAD STYLE | FLAT CHAMFER | INTERNAL DRIVE STYLE | HEXAGON | MATERIAL DOCUMENT AND CLASSIFICATION | FF-S-86 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | STEEL OVERALL | NOMINAL THREAD DIAMETER | 0.250 INCHES | WIDTH ACROSS FLATS | 0.1875 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MS-STD-171 MIL STD SINGLE TREATMENT RESPONSE OVERALL | SURFACE TREATMENT | CHROMATE OVERALL | THREAD CLASS | 3A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.375 INCHES NOMINAL | THREAD QUANTITY PER INCH | 20 | THREAD SERIES DESIGNATOR | UNC |
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