NSN 4820-00-737-7971

Part Details | VALVE SEAT

4820-00-737-7971 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: H156333, H15-633-3, 4820-00-737-7971, 00-737-7971, 4820007377971, 007377971

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48JAN 01, 196100-737-797122113 ( SEAT, VALVE )
REFERENCE DRAWINGS & PICTURES

PLAIN FLANGED

Cross Reference | NSN 4820-00-737-7971
Part Number Cage Code Manufacturer
H15-633-335301DRESSER INDUSTRIES INCLEROI DIV
Technical Data | NSN 4820-00-737-7971
Characteristic Specifications
STYLE DESIGNATOR PLAIN FLANGED
FLANGE DIAMETER2.495 INCHES MINIMUM AND 2.505 INCHES MAXIMUM
BODY OUTSIDE DIAMETER2.240 INCHES MINIMUM AND 2.250 INCHES MAXIMUM
BODY INSIDE DIAMETER1.058 INCHES MINIMUM AND 1.068 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM
UNDER FLANGE HEIGHT0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
SEATING SURFACE SHAPE RADIAL
SEAT RADIUS0.016 INCHES NOMINAL
SEAL ACCOMMODATION TYPE GROOVED
SPECIAL FEATURES12 HOLES,0.281 IN. DIA EQUALLY SPACED