NSN 4820-00-974-3948

Part Details | VALVE SEAT

4820-00-974-3948 A replaceable item designed to provide a 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.

Alternate Parts: 101B209CYPC1, 101B209CY1, 101B209CY-1, 101B209CY, 4820-00-974-3948, 00-974-3948, 4820009743948, 009743948

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48JAN 01, 196200-974-394822113 ( SEAT, VALVE )
REFERENCE DRAWINGS & PICTURES

PLAIN FLANGED

Cross Reference | NSN 4820-00-974-3948
Part Number Cage Code Manufacturer
101B209CYPC124446GENERAL ELECTRIC COMPANY
101B209CY-103502GENERAL ELECTRIC CONAVAL AND DRIVE TURBINE SYSTEMS DEPT
101B209CY03502GENERAL ELECTRIC CONAVAL AND DRIVE TURBINE SYSTEMS DEPT
Technical Data | NSN 4820-00-974-3948
Characteristic Specifications
STYLE DESIGNATOR PLAIN FLANGED
FLANGE DIAMETER2.501 INCHES NOMINAL
BODY OUTSIDE DIAMETER1.963 INCHES MINIMUM AND 1.973 INCHES MAXIMUM
BODY INSIDE DIAMETER1.649 INCHES MINIMUM AND 1.655 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.498 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
UNDER FLANGE HEIGHT1.678 INCHES MINIMUM AND 1.682 INCHES MAXIMUM
SEATING SURFACE SHAPE RADIAL
SEAT RADIUS0.381 INCHES MINIMUM AND 0.387 INCHES MAXIMUM
TAPER MINOR DIAMETER1.281 INCHES NOMINAL
TAPER MAJOR DIAMETER1.649 INCHES MINIMUM AND 1.655 INCHES MAXIMUM