NSN 4820-00-678-4345

Part Details | VALVE SEAT

4820-00-678-4345 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: 7027E58AXPC31, 101B354BF1, B3291860REVAPC1, 4820-00-678-4345, 00-678-4345, 4820006784345, 006784345

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48JAN 01, 196300-678-434522113 ( SEAT, VALVE )
REFERENCE DRAWINGS & PICTURES

PLAIN FLANGED

Cross Reference | NSN 4820-00-678-4345
Part Number Cage Code Manufacturer
7027E58AXPC3124446GENERAL ELECTRIC COMPANY
101B354BF103502GENERAL ELECTRIC CONAVAL AND DRIVE TURBINE SYSTEMS DEPT
B3291860REVAPC180064NAVAL SHIP SYSTEMS COMMAND
Technical Data | NSN 4820-00-678-4345
Characteristic Specifications
STYLE DESIGNATOR PLAIN FLANGED
FLANGE DIAMETER2.626 INCHES MINIMUM AND 2.631 INCHES MAXIMUM
BODY OUTSIDE DIAMETER2.122 INCHES MINIMUM AND 2.123 INCHES MAXIMUM
BODY INSIDE DIAMETER1.448 INCHES MINIMUM AND 1.454 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.498 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
UNDER FLANGE HEIGHT1.414 INCHES MINIMUM AND 1.924 INCHES MAXIMUM
SEATING SURFACE SHAPE RADIAL
SEAT RADIUS0.337 INCHES NOMINAL
TAPER MINOR DIAMETER1.125 INCHES MINIMUM AND 1.128 INCHES MAXIMUM
TAPER MAJOR DIAMETER1.448 INCHES MINIMUM AND 1.454 INCHES MAXIMUM