4820-00-074-7989 DISK,VALVE Index 4820-00-074-8012 SEAT,VALVE

National Stock Number:
4820-00-074-7991

Federal Supply Class:
4820

National Item Identification Number:
000747991

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:
1356DPC1775545LAWLER MANUFACTURING COMPANY, INC.
25455378TRAC REGULATOR CO., INC.
254-0055378TRAC REGULATOR CO., INC.
337955378TRAC REGULATOR CO., INC.
337975545LAWLER MANUFACTURING COMPANY, INC.


Techincal Specification:
STYLE DESIGNATORTHREADED FLANGED
FLANGE DIAMETER1.750 INCHES NOMINAL
BODY INSIDE DIAMETER1.313 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.375 INCHES NOMINAL
UNDER FLANGE HEIGHT0.250 INCHES MINIMUM AND
0.251 INCHES MAXIMUM
MATERIALCOPPER ALLOY OVERALL
SEATING SURFACE SHAPEFLAT
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
NOMINAL THREAD SIZE0.625 INCHES SINGLE THREADED PORTION
THREAD QUANTITY PER INCH16 SINGLE THREADED PORTION
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.250 INCHES NOMINAL SINGLE THREADED PORTION


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