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National Stock Number:
5305-01-622-1718
Federal Supply Class:
5305
National Item Identification Number:
016221718
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:
| AES14U312A00AW8AA1 | 05047 | THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS | | AES14U312A00WB0AA1 | 05047 | THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.3125 INCHES | | THREAD QUANTITY PER INCH | 18 | | THREAD CLASS | 3A | | THREAD LENGTH | 0.89 INCHES NOMINAL | | FASTENER LENGTH | 1.0 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE J 995,GRADE 8 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B 633,TYPE 2,SC3 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | HEXAGON COUNTERSUNK UNDERCUT | | HEAD DIAMETER | 0.457 INCHES MINIMUM AND | | 0.469 INCHES MAXIMUM | | HEAD HEIGHT | 0.306 INCHES MINIMUM AND | | 0.312 INCHES MAXIMUM | | KEY PROJECTION LENGTH | 0.151 INCHES MINIMUM | | CHAMFER ANGLE | 0.033 RADIANS MAXIMUM | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.25 INCHES NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SOCKET HEAD CAP SCREW |
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