4820-00-115-2453 DIAPHRAGM,VALVE,FLAT Index 4820-00-115-2455 LINER,VALVE

National Stock Number:
4820-00-115-2454

Federal Supply Class:
4820

National Item Identification Number:
001152454

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:
3774086184GRISWOLD INDUSTRIES
37740J86184GRISWOLD INDUSTRIES


Techincal Specification:
STYLE DESIGNATORTHREADED FLANGED
FLANGE DIAMETER6.160 INCHES NOMINAL
BODY INSIDE DIAMETER0.749 INCHES MINIMUM AND
0.750 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.438 INCHES NOMINAL
UNDER FLANGE HEIGHT0.860 INCHES NOMINAL
MATERIALNICKEL ALLOY OVERALL
SEATING SURFACE SHAPEANGULAR
SEAT ANGLE IN DEG5.000 NOMINAL
THREAD SERIES DESIGNATORUNF SINGLE THREADED PORTION
NOMINAL THREAD SIZE5.750 INCHES SINGLE THREADED PORTION
THREAD CLASS2B SINGLE THREADED PORTION
THREAD LENGTH0.500 INCHES NOMINAL SINGLE THREADED PORTION


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