5305-00-291-9991 SCREW,CAP,SOCKET HEAD Index 5985-00-291-9994 COUPLER,TRANSITION ROTATING

National Stock Number:
5305-00-291-9992

Federal Supply Class:
5305

National Item Identification Number:
002919992

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:
NK509-8R2126233NYLOK LLC


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.164 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.438 INCHES MINIMUM
FASTENER LENGTH1.344 INCHES NOMINAL
MATERIALPLASTIC LOCKING FEATURE
STEEL COMP 8630 OR
STEEL COMP 4037 FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6050 MIL SPEC 1ST MATERIAL RESPONSE OR
MIL-S-8695 MIL SPEC 2ND MATERIAL RESPONSE FASTENER
SURFACE TREATMENTCADMIUM OVERALL
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND
32.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT COUNTERSUNK
HEAD DIAMETER0.319 INCHES MINIMUM AND
0.332 INCHES MAXIMUM
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
LOCKING FEATUREPATCH OR
STRIP THREADS
THE MANUFACTURERS DATA
MANUFACTURERS CODE26233
DESIGN CONTROL REFERENCENK509-8R21


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