NSN 4820-00-394-7427
Valve Seat Insert
About this product
5.125 inches flange diameter, 0.250 inches flange seat to disk end height, 0.562 inches under flange height, thready qty per inch (tpi): 14 single threaded portion.
Manufacturer part number P-639A for national stock number 4820003947427.
Datasheet
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Product description
Valve Seat NSN 4820-00-394-7427.
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MPN or Model
P-639A
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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 -
Unit Weight (Est.)
0.4 lb -
Thread Class
2a single threaded portion -
Err Default
0.562 inches single threaded portion -
Flange Diameter
5.125 inches -
Flange Seat To Disk End Height
0.250 inches -
Under Flange Height
0.562 inches -
Thready Qty Per Inch (tpi)
14 single threaded portion -
Thread Size
4.625 inches single threaded portion -
Seating Surface Shape
Flat -
Body Stepped Inside Diameter
4.000 inches first step -
Material
Nickel alloy -
Style Designator
Threaded flanged -
Thread Series Designator
Uns single threaded portion
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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.
![Mechanic Bill explains Valve Seat Insert](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 4820-00-394-7427 valve seatManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
P-639A | Atlas Valve Co |
Stock Check
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