National Item Identification Number
01-284-6123
012846123
4820-01-284-6123
4820-01-284-6123
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
61661
61661
Reference Numbers (Part Numbers)
MV-31F6
MV-31F6 ITEM 5
31FCB-3 ITEM 5
Required Categories
MATERIAL
HARDNESS RATING
Required Description
STEEL SEAT
38.0 ROCKWELL C MINIMUM SEAT