5998-01-439-4431 EXCITER,RADIO FREQUENCY Index 2530-01-439-4433 PISTON,VALVE

National Stock Number:
5305-01-439-4432

Federal Supply Class:
5305

National Item Identification Number:
014394432

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:
92196A55139428MCMASTER-CARR SUPPLY CO
AES14C250B25DS6A3105047THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
AES14U250B25DS6A3105047THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
PWA81910-177445RTX CORPORATION


Techincal Specification:
FASTENER LENGTH2.250 INCHES NOMINAL
HEAD DIAMETER0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD HEIGHT0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL COMP 302 OVERALL
MINIMUM TENSILE STRENGTH75000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.250 INCHES MINIMUM
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS0.188 INCHES NOMINAL


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