4820-01-145-6687 SEAT,VALVE Index 4810-01-145-6690 SEAT,VALVE

National Stock Number:
4820-01-145-6688

Federal Supply Class:
4820

National Item Identification Number:
011456688

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:
C542886184GRISWOLD INDUSTRIES
C5428C86184GRISWOLD INDUSTRIES


Techincal Specification:
BODY INSIDE DIAMETER1.500 INCHES NOMINAL
FLANGE DIAMETER2.075 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.188 INCHES NOMINAL
MATERIALNICKEL ALLOY OVERALL
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD SIZE1.750 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPEFLAT
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.438 INCHES NOMINAL SINGLE THREADED PORTION
THREAD QUANTITY PER INCH16 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
UNDER FLANGE HEIGHT1.150 INCHES NOMINAL


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