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National Stock Number:
5305-00-078-7021
Federal Supply Class:
5305
National Item Identification Number:
000787021
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:
| 5305000787021 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | | 8743903 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 8743911 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | M34AS420R10C | 26233 | NYLOK LLC |
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Techincal Specification:
| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM | | FASTENER LENGTH | 0.625 INCHES NOMINAL | | HEAD DIAMETER | 0.452 INCHES MINIMUM AND 0.507 INCHES MAXIMUM | | HEAD STYLE | OVAL COUNTERSUNK | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | LOCKING FEATURE | PATCH THREADS | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.625 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) | | SURFACE TREATMENT | CADMIUM AND CHROMATE AND ZINC AND CHROMATE OVERALL | | THREAD CLASS | 2A |
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