4810-00-035-9920 SEAT,VALVE Index 4820-00-035-9922 DISK,VALVE

National Stock Number:
4820-00-035-9920

Federal Supply Class:
4820

National Item Identification Number:
000359920

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:
C76986184GRISWOLD INDUSTRIES


Techincal Specification:
BODY INSIDE DIAMETER2.000 INCHES MINIMUM AND 2.003 INCHES MAXIMUM
FLANGE DIAMETER2.630 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.219 INCHES NOMINAL
MATERIALNICKEL OR COPPER ALLOY OVERALL
NOMINAL THREAD SIZE2.375 INCHES SINGLE THREADED PORTION
SEAT ANGLE IN DEG0.083 NOMINAL
SEATING SURFACE SHAPEANGULAR
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.280 INCHES MINIMUM FIRST THREADED PORTION
THREAD LENGTH0.320 INCHES MAXIMUM SECOND THREADED PORTION
THREAD QUANTITY PER INCH16 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.410 INCHES NOMINAL


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