4820-01-043-3625 SEAT,VALVE Index 9905-01-043-3629 PLATE,IDENTIFICATION

National Stock Number:
4820-01-043-3626

Federal Supply Class:
4820

National Item Identification Number:
010433626

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:
1889581ASSYC 153711NAVAL SEA SYSTEMS COMMAND
2620-90263686THE WALWORTH COMPANY
2620-902 ASSY CV 1 1/2 PIECE 463686THE WALWORTH COMPANY
2620-902ASSYCF1 1/2INPC463686THE WALWORTH COMPANY
2620-902ASSYCF1 1/2INPC496169ELECTRIC BOAT CORPORATION
2620-902 ASSY C96169ELECTRIC BOAT CORPORATION
845-1889581ASSY53711NAVAL SEA SYSTEMS COMMAND
2620-902X2ASSYC1 1-2IN PC2063686THE WALWORTH COMPANY
803-217793480064NAVAL SHIP SYSTEMS COMMAND
803-2177934-72X-1880064NAVAL SHIP SYSTEMS COMMAND
803-2177934-X7XX-1880064NAVAL SHIP SYSTEMS COMMAND
810-2177934-72X-1880064NAVAL SHIP SYSTEMS COMMAND
30005390664WALWORTH CO MARINE DIV
2620-902X2ASSYC1 1-2IN PC2096169ELECTRIC BOAT CORPORATION
SS845-188958753711NAVAL SEA SYSTEMS COMMAND
C38479-1-1-263686THE WALWORTH COMPANY
SS845-188958780064NAVAL SHIP SYSTEMS COMMAND
SS845-1889587 ASSY CV PIECE 480064NAVAL SHIP SYSTEMS COMMAND
845-1889587ASSYCF80064NAVAL SHIP SYSTEMS COMMAND
845-1889587ASSYCF1 1-2INPC480064NAVAL SHIP SYSTEMS COMMAND
845-1889587PC4,96169ELECTRIC BOAT CORPORATION


Techincal Specification:
BODY INSIDE DIAMETER1.252 INCHES NOMINAL
FLANGE DIAMETER2.124 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.216 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY OVERALL
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD SIZE1.937 INCHES SINGLE THREADED PORTION
SEATING SURFACE SHAPEANGULAR
SEAT ANGLE IN DEG45.000 NOMINAL
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS3A SINGLE THREADED PORTION
THREAD LENGTH0.346 INCHES NOMINAL SINGLE THREADED PORTION
THREAD QUANTITY PER INCH18 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.471 INCHES NOMINAL


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