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National Stock Number: 5305-00-558-9581
Federal Supply Class: 5305
National Item Identification Number: 005589581
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:
S963A4-7 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | S963A4-7 | 77751 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL | FASTENER LENGTH | 0.893 INCHES NOMINAL | HEAD DIAMETER | 0.461 INCHES MINIMUM AND 0.471 INCHES MAXIMUM | HEAD STYLE | FLAT COUNTERSUNK | INTERNAL DRIVE STYLE | HEXAGON | MATERIAL | STEEL OVERALL | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | NOMINAL THREAD DIAMETER | 0.250 INCHES | WIDTH ACROSS FLATS | 0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM | SURFACE TREATMENT | CADMIUM OVERALL | THREAD CLASS | 3A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.455 INCHES MINIMUM | THREAD QUANTITY PER INCH | 28 | THREAD SERIES DESIGNATOR | UNF |
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