NSN 4820-00-794-2777

Part Details | VALVE SEAT

4820-00-794-2777 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: 439B750PC3, 356C6903, 356C690-3, 439B750PC3, 356C6903, 356C690-3, 4820-00-794-2777, 00-794-2777, 4820007942777, 007942777

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48JAN 01, 196000-794-277722113 ( SEAT, VALVE )
REFERENCE DRAWINGS & PICTURES

PLAIN FLANGED

Cross Reference | NSN 4820-00-794-2777
Part Number Cage Code Manufacturer
439B750PC324446GENERAL ELECTRIC COMPANY
356C690-324446GENERAL ELECTRIC COMPANY
439B750PC301289GENERAL ELECTRIC COMPANYDBA GE DIV GE-AVIATION GEAR PLANT
356C690-301289GENERAL ELECTRIC COMPANYDBA GE DIV GE-AVIATION GEAR PLANT
Technical Data | NSN 4820-00-794-2777
Characteristic Specifications
STYLE DESIGNATOR PLAIN FLANGED
FLANGE DIAMETER4.750 INCHES MINIMUM AND 4.751 INCHES MAXIMUM
BODY OUTSIDE DIAMETER3.938 INCHES NOMINAL
BODY INSIDE DIAMETER3.013 INCHES MINIMUM AND 3.015 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.938 INCHES MINIMUM AND 0.940 INCHES MAXIMUM
UNDER FLANGE HEIGHT2.000 INCHES NOMINAL
SEATING SURFACE SHAPE RADIAL
SEAT RADIUS1.500 INCHES NOMINAL