4820-01-139-1688 SEAT,VALVE Index 2805-01-139-1690 INSERT,ENGINE VALVE SEAT

National Stock Number:
4820-01-139-1689

Federal Supply Class:
4820

National Item Identification Number:
011391689

Description:
SEAT,VALVE

Detail:
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.


Manufacturer Information:
803-500104853711NAVAL SEA SYSTEMS COMMAND
803-5001048 PIECE 253711NAVAL SEA SYSTEMS COMMAND
DS-257041SPECO INC


Techincal Specification:
MATERIALPLASTIC ACETAL BODY


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