NSN 4820-01-257-8722

Part Details | VALVE SEAT

4820-01-257-8722 A replaceable item designed to provide a 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.

Alternate Parts: 259089 ITEM 44, 259045 ITEM 9, 259045, 4820-01-257-8722, 01-257-8722, 4820012578722, 012578722

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48JUN 25, 198701-257-872222113 ( SEAT, VALVE )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 4820-01-257-8722
Part Number Cage Code Manufacturer
259089 ITEM 4443689HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS
259045 ITEM 943689HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS
25904543689HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS
Technical Data | NSN 4820-01-257-8722
Characteristic Specifications