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National Stock Number: 5305-01-542-8981
Federal Supply Class: 5305
National Item Identification Number: 015428981
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:
NAS1351N5H28 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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Techincal Specification:
FASTENER LENGTH | 1.750 INCHES NOMINAL | HEAD DIAMETER | 0.457 INCHES MINIMUM AND 0.469 INCHES MAXIMUM | HEAD HEIGHT | 0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM | HEAD STYLE | FLAT CHAMFER | HOLE DIAMETER | 0.044 INCHES MINIMUM AND 0.050 INCHES MAXIMUM | HOLE QUANTITY | 6 | HOLE TYPE | DRILLED | INTERNAL DRIVE STYLE | HEXAGON | MATERIAL | IRON ALLOY 660 OVERALL | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | NOMINAL THREAD DIAMETER | 0.312 INCHES | WIDTH ACROSS FLATS | 0.250 INCHES MINIMUM AND 0.253 INCHES MAXIMUM | SURFACE TREATMENT | PASSIVATE OVERALL | THREAD CLASS | 3A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 1.125 INCHES NOMINAL | THREAD QUANTITY PER INCH | 24 | THREAD SERIES DESIGNATOR | UNRF |
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