NSN 4820-00-858-1653

Part Details | VALVE SEAT

4820-00-858-1653 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: 2356975, 2356975, 4820-00-858-1653, 00-858-1653, 4820008581653, 008581653

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48JAN 01, 196300-858-165322113 ( SEAT, VALVE )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 4820-00-858-1653
Part Number Cage Code Manufacturer
235697588277BOEING COMPANY, THEDBA BOEING
235697518355BOEING COMPANY, THEDBA BOEING
Technical Data | NSN 4820-00-858-1653
Characteristic Specifications
OVERALL HEIGHT2.459 INCHES NOMINAL
BODY OUTSIDE DIAMETER0.625 INCHES NOMINAL
SEATING SURFACE SHAPE ANGULAR
SEAT ANGLE IN DEG15.000 NOMINAL
SEAL ACCOMMODATION TYPE GROOVED