National Item Identification Number

01-257-8722
012578722
4820-01-257-8722
4820-01-257-8722

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)

---

43689

---

---

43689

---

---

43689

---

---

Reference Numbers (Part Numbers)

259045
259045 ITEM 9
259089 ITEM 44

Required Categories

MATERIAL

Required Description

STEEL CORROSION RESISTING SEAT