4820-00-024-1426 DISC ASSEMBLY,SEAL Index 4820-00-024-1428 SEAT,VALVE

National Stock Number:
4820-00-024-1427

Federal Supply Class:
4820

National Item Identification Number:
000241427

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:
240-4824-1036159REVAPC380064NAVAL SHIP SYSTEMS COMMAND
25863ALT11PCV381316PORTSMOUTH NAVAL SHIPYARD
25863PCV381316PORTSMOUTH NAVAL SHIPYARD
490376ALT11PCV380064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-N-20164 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY OVERALL
NOMINAL THREAD SIZE2.500 INCHES SINGLE THREADED PORTION
THREAD CLASS3A SINGLE THREADED PORTION
THREAD LENGTH0.562 INCHES NOMINAL SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
THREAD QUANTITY PER INCH16 SINGLE THREADED PORTION


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