National Item Identification Number

01-254-6775
012546775
4820-01-254-6775
4820-01-254-6775

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)

---

99167

---

---

Reference Numbers (Part Numbers)

20645-1

Required Categories

STYLE DESIGNATOR
FLANGE DIAMETER
BODY OUTSIDE DIAMETER
BODY INSIDE DIAMETER;

Required Description

B7 PLAIN FLANGED
0.372 INCHES MINIMUM AND
0.374 INCHES MAXIMUM
0.250 INCHES N