5998-00-429-5437 CIRCUIT CARD ASSEMBLY Index 5305-00-429-5458 SCREW,MACHINE

National Stock Number:
5305-00-429-5449

Federal Supply Class:
5305

National Item Identification Number:
004295449

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:
71140604-0090536LOCKHEED MARTIN CORP


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.138 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.313 INCHES MINIMUM
FASTENER LENGTH0.313 INCHES NOMINAL
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM AND
DICHROMATE OVERALL
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND
43.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
HEAD STYLEFLAT CHAMFER
HEAD DIAMETER0.218 INCHES MINIMUM AND
0.226 INCHES MAXIMUM
HEAD HEIGHT0.134 INCHES MINIMUM AND
0.138 INCHES MAXIMUM
INTERNAL DRIVE STYLEHEXAGON
WIDTH ACROSS FLATS0.109 INCHES NOMINAL
THE MANUFACTURERS DATA
MANUFACTURERS CODE90536
DESIGN CONTROL REFERENCE71140604-00


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