4820-00-216-9019 SEAT,VALVE Index 4820-00-216-9022 DIAPHRAGM,VALVE,FLAT

National Stock Number:
4820-00-216-9021

Federal Supply Class:
4820

National Item Identification Number:
002169021

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:
C374286184GRISWOLD INDUSTRIES
C3742J86184GRISWOLD INDUSTRIES


Techincal Specification:
BODY INSIDE DIAMETER0.750 INCHES MINIMUM AND 0.751 INCHES MAXIMUM
FLANGE DIAMETER6.160 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.438 INCHES NOMINAL
MATERIALCOPPER ALLOY 922 OVERALL
NOMINAL THREAD SIZE5.750 INCHES SINGLE THREADED PORTION
SEAT ANGLE IN DEG5.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.582 INCHES NOMINAL SINGLE THREADED PORTION
THREAD QUANTITY PER INCH12 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
UNDER FLANGE HEIGHT1.812 INCHES NOMINAL


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