NSN 4820-00-257-5196
Valve Seat Insert
About this product
Between 0.372 inches and 0.373 inches flange diameter, 0.188 inches body inside diameter, between 0.215 inches and 0.235 inches flange seat to disk end height, under flange height: between 0.149 inches and 0.159 inches .
Manufacturer part number 2618581 for national stock number 4820002575196.
Datasheet
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Product description
Valve Seat NSN 4820-00-257-5196.
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MPN or Model
2618581
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Schedule B
8481.90.9090 (Parts of taps, cocks, valves and similar appliances, nesoi) -
NMF (National Motor Freight)
051080 - Faucets, Bibcocks, Gates Valves -
Flange Diameter
Between 0.372 inches and 0.373 inches -
Body Outside Diameter
Between 0.372 inches and 0.373 inches -
Body Inside Diameter
0.188 inches -
Flange Seat To Disk End Height
Between 0.215 inches and 0.235 inches -
Under Flange Height
Between 0.149 inches and 0.159 inches -
Seal Accommodation Type
Grooved -
Hardness Rating
58.0 rockwell c body and 60.0 rockwell c body -
Seating Surface Shape
Flat -
Material
Steel comp 440c -
Surface Treatment
Passivate -
Surface Treatment Specification
Qq-p-35 federal specification single treatment response -
Style Designator
Plain flanged
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Valve Seat
A replaceable item designed to provide a 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.
Pricing and Availability
Get a quote for 4820-00-257-5196 valve seatManufacturer Part Numbers and Alternates
| MPN manufacturer part number | Registrant or Supplier |
|---|---|
| 2618581 | Navair And Navsea Managed |
| 2618581P1 | Naval Sea Systems Command |
Stock Check
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