National Item Identification Number
01-202-3121
012023121
4820-01-202-3121
4820-01-202-3121
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)
92003
Reference Numbers (Part Numbers)
2721433
Required Categories
OVERALL HEIGHT
BODY STEPPED INSIDE DIAMETER
MATERIAL
MATERIAL DOCUMENT AND CL
Required Description
0.870 INCHES NOMINAL
0.4345 INCHES NOMINAL FIRST STEP
0.465 INCHES NOMINAL SEC
