5305-00-754-3129 SCREW,MACHINE Index 5305-00-754-3133 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-754-3131

Federal Supply Class:
5305

National Item Identification Number:
007543131

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:
916789718876U S ARMY AVIATION AND MISSILE COMMAND
NK525-10R1017910NYLOK LLC
NK525-10R1026233NYLOK LLC


Techincal Specification:
EXTENDED WASHER DIAMETER0.437 INCHES NOMINAL
EXTENDED WASHER THICKNESS0.025 INCHES NOMINAL
FASTENER LENGTH0.625 INCHES NOMINAL
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.375 INCHES NOMINAL
HEAD HEIGHT0.094 INCHES NOMINAL
HEAD STYLEROUND EXTENDED WASHER
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
LOCKING FEATUREPATCH OR STRIP THREADS
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.190 INCHES
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
THREAD LENGTH0.219 INCHES MINIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH32


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