4420-00-083-2883 COOLER,FLUID,INDUSTRIAL Index 4820-00-083-2886 SEAT,VALVE

National Stock Number:
4820-00-083-2885

Federal Supply Class:
4820

National Item Identification Number:
000832885

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:
150501379500WESTINGHOUSE ELECTRIC CORP
150501390099NORTHROP GRUMMAN SYSTEMS CORPORATION
1JH1521PC879500WESTINGHOUSE ELECTRIC CORP


Techincal Specification:
BODY INSIDE DIAMETER0.500 INCHES NOMINAL
BODY OUTSIDE DIAMETER1.002 INCHES MINIMUM AND 1.003 INCHES MAXIMUM
FLANGE DIAMETER1.595 INCHES MINIMUM AND 1.605 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT1.188 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FACE
MATERIALCHROMIUM ALLOY SEAT
MATERIALCOBALT ALLOY FACE
SEAT RADIUS0.432 INCHES MINIMUM AND 0.442 INCHES MAXIMUM
SEATING SURFACE SHAPERADIAL
STYLE DESIGNATORPLAIN FLANGED
UNDER FLANGE HEIGHT0.688 INCHES NOMINAL


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