National Item Identification Number
01-137-8221
011378221
4820-01-137-8221
4820-01-137-8221
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)
Reference Numbers (Part Numbers)
A-8097-M-8
A-8097-M-8 PC 5
C-7877-10
640881
Required Categories
MATERIAL
HARDNESS RATING
Required Description
STEEL SEAT
NOT RATED