National Item Identification Number
01-239-3659
012393659
4820-01-239-3659
4820-01-239-3659
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)
53711
53711
53711
Reference Numbers (Part Numbers)
820-5348558-1
820-5348584-19
820-5348629-19
Required Categories
MATERIAL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS
CRITICALITY CODE JUS
Required Description
NICKEL ALLOY OVERALL
MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CE