National Item Identification Number
00-903-4337
009034337
4820-00-903-4337
4820-00-903-4337
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)
72957
72957
72957
72957
72957
Reference Numbers (Part Numbers)
BWW-0067ITEM3-9
Z638212PC2
638212-2
638212PC2
8R0003ITEM3-9
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
SURFACE TREATMENT
HARDNESS RATI
Required Description
STEEL OVERALL
FED STD 66 FED STD 1ST MATERIAL RESPONSE OR
AISI 416/SAE 51416 A