National Item Identification Number
00-838-4978
008384978
4820-00-838-4978
4820-00-838-4978
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)
99643
Reference Numbers (Part Numbers)
13602
Required Categories
MATERIAL
HARDNESS RATING
SEATING SURFACE SHAPE
THE MANUFACTURERS DATA
MANUFA
Required Description
STEEL CORROSION RESISTING BODY
48.0 ROCKWELL C MINIMUM AND
52.0 ROCKWELL C MAX
