5305-00-846-1288 SCREW,CAP,SOCKET HEAD Index 5305-00-846-1290 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-846-1289

Federal Supply Class:
5305

National Item Identification Number:
008461289

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:
9157796-5718876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
FASTENER LENGTH0.750 INCHES NOMINAL
HEAD DIAMETER0.429 INCHES MINIMUM AND 0.437 INCHES MAXIMUM
HEAD HEIGHT0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL CORROSION RESISTING OVERALL
MINIMUM TENSILE STRENGTH100000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.312 INCHES
WIDTH ACROSS FLATS0.218 INCHES MINIMUM AND 0.220 INCHES MAXIMUM
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.750 INCHES MINIMUM
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNC


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