5340-01-517-9220 CAP,PROTECTIVE,DUST AND MOISTURE Index 5998-01-517-9222 CIRCUIT CARD ASSEMBLY

National Stock Number:
5305-01-517-9221

Federal Supply Class:
5305

National Item Identification Number:
015179221

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:
90128A19439428MCMASTER-CARR SUPPLY CO


Techincal Specification:
FASTENER LENGTH0.500 INCHES NOMINAL
HEAD DIAMETER0.270 INCHES NOMINAL
HEAD HEIGHT0.160 INCHES NOMINAL
HEAD STYLEFILLISTER
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.164 INCHES
WIDTH ACROSS FLATS0.141 INCHES NOMINAL
SURFACE TREATMENTZINC ALLOY OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.340 INCHES NOMINAL
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNC


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