NSN 4820-01-003-4345

Part Details | VALVE SEAT

4820-01-003-4345 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: 38630481, 3863048-1, 4820-01-003-4345, 01-003-4345, 4820010034345, 010034345

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48APR 23, 197501-003-434522113 ( SEAT, VALVE )
REFERENCE DRAWINGS & PICTURES

THREADED FLANGED

Cross Reference | NSN 4820-01-003-4345
Part Number Cage Code Manufacturer
3863048-133068TRIUMPH ACTUATION SYSTEMS -CONNECTICUT, LLC
Technical Data | NSN 4820-01-003-4345
Characteristic Specifications
STYLE DESIGNATOR4 THREADED FLANGED
FLANGE DIAMETER0.374 INCHES NOMINAL
BODY OUTSIDE DIAMETER0.183 INCHES MINIMUM AND 0.184 INCHES MAXIMUM
BODY INSIDE DIAMETER0.189 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.165 INCHES MINIMUM AND 0.170 INCHES MAXIMUM
UNDER FLANGE HEIGHT0.060 INCHES MINIMUM AND 0.065 INCHES MAXIMUM
SEATING SURFACE SHAPE FLAT