National Item Identification Number

00-302-9987
003029987
4810-00-302-9987
4810-00-302-9987

National Stock Number

Item Name

SEAT,VALVE

Federal Supply Class

4810

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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82106

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Reference Numbers (Part Numbers)

12013

Required Categories

BODY OUTSIDE DIAMETER
MATERIAL
SURFACE TREATMENT
HARDNESS RATING
SEATING SUR

Required Description

0.249 INCHES MINIMUM AND
0.251 INCHES MAXIMUM
STEEL COMP 440A BODY
PASSIVATE