NSN 4820-00-340-7122

Part Details | VALVE SEAT

4820-00-340-7122 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: 20A12225, 4820-00-340-7122, 00-340-7122, 4820003407122, 003407122

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48JAN 01, 196300-340-712222113 ( SEAT, VALVE )
REFERENCE DRAWINGS & PICTURES

THREADED FLANGED

Cross Reference | NSN 4820-00-340-7122
Part Number Cage Code Manufacturer
20A1222511599TRIUMPH ENGINE CONTROL SYSTEMS, LLC
Technical Data | NSN 4820-00-340-7122
Characteristic Specifications
STYLE DESIGNATOR THREADED FLANGED
FLANGE DIAMETER0.922 INCHES MINIMUM AND 0.940 INCHES MAXIMUM
BODY INSIDE DIAMETER0.400 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.230 INCHES MINIMUM AND 0.290 INCHES MAXIMUM
UNDER FLANGE HEIGHT0.390 INCHES NOMINAL
SEATING SURFACE SHAPE ANGULAR
SEAT ANGLE IN DEG15.000 NOMINAL
SPECIAL FEATURES0.922 IN. MIN,0.940 IN. MAX W ACROSS HEXAGONAL FLATS