NSN 4820-00-340-0853

Part Details | VALVE SEAT

4820-00-340-0853 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: 8U80174, 8U8017-4, 4820-00-340-0853, 00-340-0853, 4820003400853, 003400853

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48JAN 01, 196300-340-085322113 ( SEAT, VALVE )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 4820-00-340-0853
Part Number Cage Code Manufacturer
8U8017-460029WOODWARD, INC.DBA WOODWARD HRT
Technical Data | NSN 4820-00-340-0853
Characteristic Specifications
FLANGE DIAMETER0.684 INCHES MINIMUM AND 0.685 INCHES MAXIMUM
BODY OUTSIDE DIAMETER0.363 INCHES MINIMUM AND 0.367 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.372 INCHES MINIMUM AND 0.378 INCHES MAXIMUM
UNDER FLANGE HEIGHT0.085 INCHES MINIMUM AND 0.100 INCHES MAXIMUM
SEATING SURFACE SHAPE FLAT
SEAL ACCOMMODATION TYPE RECESSED
SPECIAL FEATURES2 BLEED HOLES
FSC APPLICATION DATAVALVE,LINEAR,DIRECTIONAL CONTROL,ACFT