National Item Identification Number
00-921-5786
009215786
4820-00-921-5786
4820-00-921-5786
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)
23L0052-1
23L0052-7
Required Categories
STYLE DESIGNATOR
FLANGE DIAMETER
BODY OUTSIDE DIAMETER
BODY INSIDE DIAMETER;
Required Description
B8 PLAIN FLANGED
4.121 INCHES NOMINAL
3.530 INCHES NOMINAL
2.875 INCHES NOMIN