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National Stock Number:
2825-00-818-1049
Federal Supply Class:
2825
National Item Identification Number:
008181049
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:
| 909D138-25 | 79500 | WESTINGHOUSE ELECTRIC CORP | | 909D138-25 | 88657 | WESTINGHOUSE ELECTRIC CORP POWER GENERATION-TURBINE DIV | | 909D138PC25 | 79500 | WESTINGHOUSE ELECTRIC CORP | | 909D138-25 | 90099 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| BODY INSIDE DIAMETER | 0.969 INCHES NOMINAL | | BODY OUTSIDE DIAMETER | 1.562 INCHES NOMINAL | | FLANGE DIAMETER | 1.812 INCHES NOMINAL | | FLANGE SEAT TO DISK END HEIGHT | 0.312 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FACE | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CLASS 410 FED SPEC SINGLE MATERIAL RESPONSE BODY | | MATERIAL | COBALT ALLOY FACE | | MATERIAL | STEEL BODY | | SEAT RADIUS | 0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM | | SEATING SURFACE SHAPE | RADIAL | | SEAL ACCOMMODATION TYPE | GROOVED | | STYLE DESIGNATOR | PLAIN FLANGED | | UNDER FLANGE HEIGHT | 1.438 INCHES NOMINAL |
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