National Item Identification Number

00-394-7427
003947427
4820-00-394-7427
4820-00-394-7427

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)

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70667

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ATLAS VALVE CO
15 SOUTH ST
MOUNT VERNON
NY
10550
914-664-8339

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Reference Numbers (Part Numbers)

P-639A

Required Categories

STYLE DESIGNATOR
FLANGE DIAMETER
FLANGE SEAT TO DISK END HEIGHT
UNDER FLANGE

Required Description

B1A THREADED FLANGED
5.125 INCHES NOMINAL
0.250 INCHES NOMINAL
0.562 INCHES N