National Item Identification Number
01-288-3907
012883907
4820-01-288-3907
4820-01-288-3907
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)
61661
Reference Numbers (Part Numbers)
MV-21F2 1/2-2
Required Categories
MATERIAL
HARDNESS RATING
SPECIAL FEATURES
Required Description
STEEL CORROSION RESISTING SEAT
NOT RATED
13 PERCENT CHROMIUM
HARDFACING