National Item Identification Number

01-253-6945
012536945
4820-01-253-6945
4820-01-253-6945

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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3H889

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92003

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Reference Numbers (Part Numbers)

2853002-101
2853002-101

Required Categories

MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
SURFACE TREATMENT
SURFACE TREAT

Required Description

STEEL CORROSION RESISTING OVERALL
AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OV