NSN 4820-00-397-9527

Part Details | VALVE SEAT

4820-00-397-9527 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: 61258P20, 60645P20, 4820-00-397-9527, 00-397-9527, 4820003979527, 003979527

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48JAN 01, 196300-397-952722113 ( SEAT, VALVE )
REFERENCE DRAWINGS & PICTURES

PLAIN

Cross Reference | NSN 4820-00-397-9527
Part Number Cage Code Manufacturer
61258P2080254TEXTRON LYCOMING INCWILLIAMSPORT PLANT
60645P2080254TEXTRON LYCOMING INCWILLIAMSPORT PLANT
Technical Data | NSN 4820-00-397-9527
Characteristic Specifications
STYLE DESIGNATOR PLAIN
OVERALL HEIGHT0.409 INCHES MINIMUM AND 0.414 INCHES MAXIMUM
BODY OUTSIDE DIAMETER2.117 INCHES NOMINAL
BODY INSIDE DIAMETER1.720 INCHES NOMINAL
SEATING SURFACE SHAPE RADIAL
SEAT RADIUS0.250 INCHES NOMINAL