4820-00-586-3919 DISK,VALVE Index 5305-00-586-3925 SCREW,MACHINE

National Stock Number:
4820-00-586-3920

Federal Supply Class:
4820

National Item Identification Number:
005863920

Description:
SEAT,VALVE

Detail:
A replaceable item designed to provide a circular stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see INSERT, ENGINE VALVE SEAT.


Manufacturer Information:
C8943-9EPCALLNICU63686THE WALWORTH COMPANY


Techincal Specification:
BODY INSIDE DIAMETER0.422 INCHES MINIMUM AND 0.426 INCHES MAXIMUM
FLANGE DIAMETER0.934 INCHES MINIMUM AND 0.940 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.119 INCHES MINIMUM AND 0.125 INCHES MAXIMUM
MATERIALCOPPER ALLOY OVERALL
NOMINAL THREAD SIZE0.766 INCHES SINGLE THREADED PORTION
SPECIAL FEATURES1 SEAT RING
SEAT ANGLE IN DEG15.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
STYLE DESIGNATORTHREADED FLANGED
TAPER MAJOR DIAMETER0.547 INCHES MINIMUM AND 0.551 INCHES MAXIMUM
TAPER MINOR DIAMETER0.469 INCHES MINIMUM AND 0.473 INCHES MAXIMUM
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.316 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
THREAD QUANTITY PER INCH24 SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.316 INCHES NOMINAL


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