National Item Identification Number

00-339-4537
003394537
4810-00-339-4537
4810-00-339-4537

National Stock Number

Item Name

SEAT,VALVE

Federal Supply Class

4810

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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79500

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88657

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WESTINGHOUSE ELECTRIC CORP
POWER GENERATION-TURBINE DIV
THE QUADRANGLE
4400 ALAFAYA TRL
ORLANDO
FL
32826
407-736-2000

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90099

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NORTHROP GRUMMAN SYSTEMS CORPORATION
DBA NORTHROP GRUMMAN MARINE SYSTEMS
401 E HENDY AVE MS 33-3
SUNNYVALE
CA
94086
408-735-4188

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Reference Numbers (Part Numbers)

BB61S61-0125PC38
BB61S61-0126ALT1PC40
BB61S61-034ALT1PC210
BB61S61-123ALT8PC2

Required Categories

STYLE DESIGNATOR
FLANGE DIAMETER
BODY INSIDE DIAMETER
FLANGE SEAT TO DISK END

Required Description

B7 PLAIN FLANGED
1.907 INCHES MINIMUM AND
1.917 INCHES MAXIMUM
0.969 INCHES N