5310-00-250-2079 WASHER,FLAT Index 5305-00-250-2081 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-250-2080

Federal Supply Class:
5305

National Item Identification Number:
002502080

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.


Manufacturer Information:
509440-163080020NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2


Techincal Specification:
FASTENER LENGTH3.750 INCHES NOMINAL
HARDNESS RATING
HEAD DIAMETER1.500 INCHES MAXIMUM
HEAD HEIGHT1.000 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION
MATERIAL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH130000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER1.000 INCHES
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.500 INCHES MINIMUM
THREAD QUANTITY PER INCH8
THREAD SERIES DESIGNATORUNC
WIDTH ACROSS FLATS0.750 INCHES NOMINAL


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