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National Stock Number:
4820-00-368-9430
Federal Supply Class:
4820
National Item Identification Number:
003689430
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:
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Techincal Specification:
| STYLE DESIGNATOR | PLAIN FLANGED | | FLANGE DIAMETER | 1.000 INCHES NOMINAL | | BODY OUTSIDE DIAMETER | 0.673 INCHES MINIMUM AND | | 0.675 INCHES MAXIMUM | | BODY INSIDE DIAMETER | 0.329 INCHES MINIMUM AND | | 0.330 INCHES MAXIMUM | | FLANGE SEAT TO DISK END HEIGHT | 0.078 INCHES NOMINAL | | UNDER FLANGE HEIGHT | 0.973 INCHES MINIMUM AND | | 0.977 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SEATING SURFACE SHAPE | FLAT | | SPECIAL FEATURES | FIRST END 4 HOLES 0.173 IN. DIA; 1 FLANGE LOCATED 0.325 IN. FROM FIRST END AND 1 FLANGE LOCATED 0.725 IN. FROM FIRST END |
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