National Item Identification Number

01-255-3392
012553392
4820-01-255-3392
4820-01-255-3392

National Stock Number

Item Name

SEAT,VALVE

Federal Supply Class

4820

Description

A replaceable item designed to provide a circular 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.

Commercial and Government Entity Code (Supplier Data)

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Reference Numbers (Part Numbers)

803-1385623-02XX-04

Required Categories

STYLE DESIGNATOR
FLANGE DIAMETER
BODY INSIDE DIAMETER
UNDER FLANGE HEIGHT
MA

Required Description

B1 THREADED FLANGED
3.250 INCHES NOMINAL
2.500 INCHES NOMINAL
0.438 INCHES NO