National Item Identification Number

00-021-6855
000216855
4810-00-021-6855
4810-00-021-6855

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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77445

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Reference Numbers (Part Numbers)

541898

Required Categories

MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
HARDNESS RATING
SEATING SURFACE

Required Description

STEEL OVERALL
AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
45.0 ROCKWELL