National Item Identification Number
01-283-8403
012838403
4820-01-283-8403
4820-01-283-8403
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)
D-3-442
D-3-442 ITEM 6
420-0269
Required Categories
MATERIAL
HARDNESS RATING
SEATING SURFACE SHAPE
SPECIAL FEATURES
Required Description
STEEL SEAT
NOT RATED
ANGULAR
LOCK BALL