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National Stock Number: 5305-00-142-4863
Federal Supply Class: 5305
National Item Identification Number: 001424863
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:
511467-5-12 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2 |
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Techincal Specification:
THREAD SERIES DESIGNATOR | UNC | NOMINAL THREAD DIAMETER | 0.312 INCHES | THREAD QUANTITY PER INCH | 18 | THREAD CLASS | 3A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.431 INCHES MINIMUM AND | | 0.552 INCHES MAXIMUM | FASTENER LENGTH | 0.740 INCHES MINIMUM AND | | 0.760 INCHES MAXIMUM | MATERIAL | STEEL OVERALL | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL | SURFACE TREATMENT | CADMIUM OVERALL | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND | | 40.0 ROCKWELL C MAXIMUM OVERALL | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | HEAD STYLE | FLAT COUNTERSUNK | HEAD DIAMETER | 0.646 INCHES MINIMUM AND | | 0.666 INCHES MAXIMUM | COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND | | 82.0 DEGREES MAXIMUM | INTERNAL DRIVE STYLE | HEXAGON | WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL | THE MANUFACTURERS DATA | | MANUFACTURERS CODE | 80020 | DESIGN CONTROL REFERENCE | 511467-5-12 |
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