4820-00-073-0509 DISK,VALVE Index 4820-00-073-0511 WRENCH,VALVE SEAT

National Stock Number:
4820-00-073-0510

Federal Supply Class:
4820

National Item Identification Number:
000730510

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:
295975545LAWLER MANUFACTURING COMPANY, INC.
69455378TRAC REGULATOR CO., INC.
694-0055378TRAC REGULATOR CO., INC.


Techincal Specification:
BODY INSIDE DIAMETER2.998 INCHES NOMINAL
FLANGE DIAMETER4.125 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.250 INCHES NOMINAL
MATERIALNICKEL ALLOY OVERALL
NOMINAL THREAD SIZE3.500 INCHES SINGLE THREADED PORTION
SEAL ACCOMMODATION TYPEGROOVED
SEATING SURFACE SHAPEFLAT
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.625 INCHES NOMINAL SINGLE THREADED PORTION
THREAD QUANTITY PER INCH16 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.625 INCHES NOMINAL


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