National Item Identification Number
00-139-7697
001397697
4820-00-139-7697
4820-00-139-7697
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)
96214
Reference Numbers (Part Numbers)
736971-1
Required Categories
MATERIAL
HARDNESS RATING
SEATING SURFACE SHAPE
SEAT ANGLE IN DEG
THE MANUFAC
Required Description
STEEL COMP 4340 OVERALL
50.0 ROCKWELL C MINIMUM AND
55.0 ROCKWELL C MAXIMUM OV