National Item Identification Number
00-391-8183
003918183
4820-00-391-8183
4820-00-391-8183
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)
AA19010PC19011-6
AA19011PC19011-6
AA21041-1PC21042-6
AA21041-2PC21042-6
AA21
Required Categories
STYLE DESIGNATOR
FLANGE DIAMETER
BODY INSIDE DIAMETER
FLANGE SEAT TO DISK END
Required Description
B1 THREADED FLANGED
1.562 INCHES NOMINAL
0.625 INCHES MINIMUM AND
0.627 INCHE