4820-00-393-4283 SEAT,VALVE Index 4820-00-393-4285 SEAT,VALVE

National Stock Number:
4820-00-393-4284

Federal Supply Class:
4820

National Item Identification Number:
003934284

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:
2342626505GROVE VALVE OPERATIONS


Techincal Specification:
BODY OUTSIDE DIAMETER1.251 INCHES MINIMUM AND 1.252 INCHES MAXIMUM
BODY STEPPED INSIDE DIAMETER0.748 INCHES MINIMUM AND 0.752 INCHES MAXIMUM FIRST STEP
BODY STEPPED INSIDE DIAMETER1.062 INCHES NOMINAL SECOND STEP
FLANGE DIAMETER1.497 INCHES MINIMUM AND 1.502 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.311 INCHES MINIMUM AND 0.313 INCHES MAXIMUM
MATERIALSTEEL CORROSION RESISTING OVERALL
SEAT ANGLE IN DEG45.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
UNDER FLANGE HEIGHT0.250 INCHES NOMINAL
STYLE DESIGNATORPLAIN FLANGED


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