4820-01-237-6221 SEAT,VALVE Index 4820-01-237-6223 SEAT,VALVE

National Stock Number:
4820-01-237-6222

Federal Supply Class:
4820

National Item Identification Number:
012376222

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:
115355378TRAC REGULATOR CO., INC.
1153-0055378TRAC REGULATOR CO., INC.


Techincal Specification:
BODY INSIDE DIAMETER0.688 INCHES MINIMUM AND 1.062 INCHES MAXIMUM
FLANGE DIAMETER1.750 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.375 INCHES NOMINAL
MATERIALSTEEL COMP 303 OVERALL
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD SIZE1.625 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPEANGULAR
SEAT ANGLE IN DEG30.000 NOMINAL
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS3A SINGLE THREADED PORTION
THREAD LENGTH0.406 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNEF SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.500 INCHES NOMINAL


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