4820-00-992-0621 SEAT,VALVE Index 2825-00-992-0623 SEAT,VALVE

National Stock Number:
4820-00-992-0622

Federal Supply Class:
4820

National Item Identification Number:
009920622

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:
668J901PC9679500WESTINGHOUSE ELECTRIC CORP
935B109-279500WESTINGHOUSE ELECTRIC CORP
935B109-288657WESTINGHOUSE ELECTRIC CORP POWER GENERATION-TURBINE DIV
935B109-290099NORTHROP GRUMMAN SYSTEMS CORPORATION
935B109PC279500WESTINGHOUSE ELECTRIC CORP
935B109PC290099NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
FLANGE DIAMETER4.792 INCHES MINIMUM AND 4.802 INCHES MAXIMUM
FSC APPLICATION DATATURBINE,STEAM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CL 410,COND T FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALCOBALT ALLOY SEAT
MATERIALSTEEL BODY
SEAT RADIUS0.683 INCHES MINIMUM AND 0.693 INCHES MAXIMUM
SEATING SURFACE SHAPERADIAL


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