NSN 4820-00-391-9356
Y Valve
About this product
3/4 inch flanged nipple in bonnet.
Manufacturer part number 20721 for national stock number 4820003919356.
Datasheet
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Product description
Y Valve NSN 4820-00-391-9356.
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MPN or Model
20721
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Schedule B
8481.80.9050 (Other taps, cocks, valves, etc., nesoi) -
NMF (National Motor Freight)
127220 - Pressure Reg/red/relief Valves NOI -
Flow Control Device
Disk -
Bonnet Type
Outside screw-yoke -
Bonnet Attachment Method
Threaded -
Bolt Hole Quantity
8 1st end -
Valve Operation Method
Manual -
Flange Shape
Round with holes 1st end -
Connection Type
Flange 1st end -
Outside Diameter
8.250 inches 1st end -
Face To Face Distance
14.000 inches -
Thickness
2.000 inches 1st end -
Bolt Hole Diameter
0.812 inches 1st end -
Bolt Circle Diameter
6.625 inches 1st end -
Flange Face Design
Raised straight 1st end -
Raised Face Height
0.125 inches 1st end -
Material
Steel body -
Style Designator
Straight through y-pattern
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Y Valve
A valve with one inlet and one outlet connection that provides unobstructed fluid flow. The flow is controlled by the action of a stem which lifts disk perpendicularly off center axis of its seat. The stem is at angle of less than 90 degrees (1.5708 radians) to parallel inlet and outlet flow. It may utilize a diaphragm as packing. Excludes valve, stop-check.
![Mechanic Bill explains Y Valve](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 4820-00-391-9356 y valveManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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20721 | Crane Co |
DD445S4810-243 | Naval Ship Systems Command |
Stock Check
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