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		                        | National Stock Number:
 4820-00-969-2973
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 009692973
 
 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:
 
 | 52NC4046 | 0BR59 | SIEMENS GOVERNMENT TECHNOLOGIES, INC. |  | 52NC4046 | 82328 | DRESSER RAND CO TERRY CORP STEAM TURBINE MOTOR AND GENERATOR CO A JOINT VENTURE |  | 717063 | 0BR59 | SIEMENS GOVERNMENT TECHNOLOGIES, INC. |  | 717063 | 82328 | DRESSER RAND CO TERRY CORP STEAM TURBINE MOTOR AND GENERATOR CO A JOINT VENTURE |  | 52NC4046 | 830Q4 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION |  | 52NC4046 | 8FGX3 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORP |  | NC4046PC52 | 0BR59 | SIEMENS GOVERNMENT TECHNOLOGIES, INC. |  | NC4046PC52 | 82328 | DRESSER RAND CO TERRY CORP STEAM TURBINE MOTOR AND GENERATOR CO A JOINT VENTURE |  | NC4046PC52 | 830Q4 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION |  | 717063 | 830Q4 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION |  | 717063 | 8FGX3 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORP |  | NC4046PC52 | 8FGX3 | CURTISS-WRIGHT ELECTRO-MECHANICAL CORP | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | PLAIN FLANGED |  | FLANGE DIAMETER | 1.124 INCHES MINIMUM AND |  |  | 1.125 INCHES MAXIMUM |  | BODY OUTSIDE DIAMETER | 0.990 INCHES MINIMUM AND |  |  | 1.000 INCHES MAXIMUM |  | BODY INSIDE DIAMETER | 0.438 INCHES NOMINAL |  | FLANGE SEAT TO DISK END HEIGHT | 0.250 INCHES NOMINAL |  | UNDER FLANGE HEIGHT | 0.250 INCHES NOMINAL |  | MATERIAL | STEEL BODY |  |  | COBALT ALLOY FACE |  | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CLASS 304,COND A FED SPEC SINGLE MATERIAL RESPONSE BODY |  |  | MIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FACE |  | SEATING SURFACE SHAPE | FLAT |  | THE MANUFACTURERS DATA |  |  | MANUFACTURERS CODE | 82328 |  | DESIGN CONTROL REFERENCE | NC4046PC52 | 
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