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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.
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Manufacturer Information:
1505013 | 79500 | WESTINGHOUSE ELECTRIC CORP | 1505013 | 90099 | NORTHROP GRUMMAN SYSTEMS CORPORATION | 1JH1521PC8 | 79500 | WESTINGHOUSE ELECTRIC CORP |
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Techincal Specification:
BODY INSIDE DIAMETER | 0.500 INCHES NOMINAL | BODY OUTSIDE DIAMETER | 1.002 INCHES MINIMUM AND 1.003 INCHES MAXIMUM | FLANGE DIAMETER | 1.595 INCHES MINIMUM AND 1.605 INCHES MAXIMUM | FLANGE SEAT TO DISK END HEIGHT | 1.188 INCHES NOMINAL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FACE | MATERIAL | CHROMIUM ALLOY SEAT | MATERIAL | COBALT ALLOY FACE | SEAT RADIUS | 0.432 INCHES MINIMUM AND 0.442 INCHES MAXIMUM | SEATING SURFACE SHAPE | RADIAL | STYLE DESIGNATOR | PLAIN FLANGED | UNDER FLANGE HEIGHT | 0.688 INCHES NOMINAL |
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