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National Stock Number: 5305-00-207-3213
Federal Supply Class: 5305
National Item Identification Number: 002073213
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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Techincal Specification:
FASTENER LENGTH | 1.312 INCHES NOMINAL | HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL | HEAD DIAMETER | 0.266 INCHES NOMINAL | HEAD HEIGHT | 0.164 INCHES NOMINAL | HEAD STYLE | FLAT CHAMFER | INTERNAL DRIVE STYLE | HEXAGON | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | STEEL COMP 8630 OVERALL | MINIMUM YIELD STRENGTH | 150000 POUNDS PER SQUARE INCH | NOMINAL THREAD DIAMETER | 0.164 INCHES | WIDTH ACROSS FLATS | 0.125 INCHES NOMINAL | SURFACE TREATMENT | CADMIUM OVERALL | THREAD CLASS | 3A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.812 INCHES NOMINAL | THREAD QUANTITY PER INCH | 32 | THREAD SERIES DESIGNATOR | UNC |
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