4820-01-178-6437 SEAT,VALVE Index 2930-01-178-6439 RADIATOR,ENGINE COOLANT

National Stock Number:
4820-01-178-6438

Federal Supply Class:
4820

National Item Identification Number:
011786438

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:
E-6223748422WILLIAM POWELL COMPANY THE DBA POWELL VALVE DIV THE STARFLO CORPORATION


Techincal Specification:
BODY INSIDE DIAMETER1.500 INCHES NOMINAL
FLANGE DIAMETER2.136 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.320 INCHES NOMINAL
MATERIALNICKEL ALLOY OVERALL
NOMINAL THREAD SIZE2.000 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPEFLAT
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS3A SINGLE THREADED PORTION
THREAD LENGTH0.255 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
THREAD QUANTITY PER INCH18 SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.380 INCHES NOMINAL


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