4820-00-035-9930 DIAPHRAGM,VALVE,FLAT Index 4820-00-035-9933 SEAT,VALVE

National Stock Number:
4820-00-035-9931

Federal Supply Class:
4820

National Item Identification Number:
000359931

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:
C429586184GRISWOLD INDUSTRIES
C4295G86184GRISWOLD INDUSTRIES


Techincal Specification:
BODY INSIDE DIAMETER2.000 INCHES MINIMUM AND 2.003 INCHES MAXIMUM
FLANGE DIAMETER2.625 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.219 INCHES MINIMUM AND 0.229 INCHES MAXIMUM
MATERIALCOPPER OVERALL
NOMINAL THREAD SIZE2.375 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPEFLAT
SPECIAL FEATURESTWO LUGS EQUALLY SPACED ON PERIMETER OF FLANGE,0.188 IN.H,0.500 IN.W
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.297 INCHES MINIMUM FIRST THREADED PORTION
THREAD LENGTH0.347 INCHES MAXIMUM SECOND THREADED PORTION
THREAD QUANTITY PER INCH16 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
UNDER FLANGE HEIGHT1.115 INCHES MINIMUM AND 1.125 INCHES MAXIMUM


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