National Item Identification Number
00-318-0231
003180231
4820-00-318-0231
4820-00-318-0231
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)
19207
Reference Numbers (Part Numbers)
8713541
Required Categories
OVERALL HEIGHT
BODY STEPPED INSIDE DIAMETER
MATERIAL
HARDNESS RATING
SEATING
Required Description
0.703 INCHES NOMINAL
0.297 INCHES MINIMUM AND
0.307 INCHES MAXIMUM FIRST STEP;