NSN 4820-00-890-4971

Part Details | VALVE SEAT

4820-00-890-4971 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: 3B1111, 3B1-11-1, 4820-00-890-4971, 00-890-4971, 4820008904971, 008904971

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48APR 08, 196800-890-497122113 ( SEAT, VALVE )
REFERENCE DRAWINGS & PICTURES

PLAIN

Cross Reference | NSN 4820-00-890-4971
Part Number Cage Code Manufacturer
3B1-11-185578MARK CONTROLS CORPPACIFIC VALVES DIV
Technical Data | NSN 4820-00-890-4971
Characteristic Specifications
STYLE DESIGNATOR PLAIN
OVERALL HEIGHT0.500 INCHES NOMINAL
BODY OUTSIDE DIAMETER3.750 INCHES NOMINAL
BODY INSIDE DIAMETER2.906 INCHES NOMINAL
SEATING SURFACE SHAPE ANGULAR
SEAT ANGLE IN DEG45.000 NOMINAL