NSN 4820-00-340-0856

Part Details | VALVE SEAT

4820-00-340-0856 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: 8U80185, 8U8018-5, 4820-00-340-0856, 00-340-0856, 4820003400856, 003400856

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48JAN 01, 196300-340-085622113 ( SEAT, VALVE )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 4820-00-340-0856
Part Number Cage Code Manufacturer
8U8018-560029WOODWARD, INC.DBA WOODWARD HRT
Technical Data | NSN 4820-00-340-0856
Characteristic Specifications
FLANGE DIAMETER0.558 INCHES MINIMUM AND 0.560 INCHES MAXIMUM
BODY OUTSIDE DIAMETER0.433 INCHES MINIMUM AND 0.435 INCHES MAXIMUM
BODY INSIDE DIAMETER0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.890 INCHES MINIMUM AND 0.900 INCHES MAXIMUM
UNDER FLANGE HEIGHT0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM
SPECIAL FEATURES4 BLEED HOLES
FSC APPLICATION DATAVALVE,LINEAR,DIRECTIONAL CONTROL,ACFT