National Item Identification Number
00-842-0512
008420512
4820-00-842-0512
4820-00-842-0512
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)
01289
01289
Reference Numbers (Part Numbers)
439B877
439B877PC5
Required Categories
FLANGE DIAMETER
BODY OUTSIDE DIAMETER
MATERIAL
SEATING SURFACE SHAPE
SEAT AN
Required Description
4.751 INCHES NOMINAL
3.486 INCHES NOMINAL
STEEL OVERALL
ANGULAR
50.000 NOMIN