290B4AS
View detailed technical data, stock status, and sourcing information for: 290B4AS
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A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
0.375 inches 2nd end nominal pipe size accommodated, 3a 1st end thread class, right-hand 2nd end thread direction, right-hand 1st end thread direction, poppet flow control device
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Nominal Pipe Size Accommodated
- 0.375 inches 2nd end
- Thread Class
- 3a 1st end
- Thread Direction
- right-hand 1st end
- Thread Direction
- right-hand 2nd end
- Flow Control Device
- poppet
- Disk Loading Method
- spring
- Renewable Seat Ring Type
- pressed-in
- Connection Style
- plain (pipe) 2nd end
- Valve Operation Method
- automatic
- Connection Type
- threaded external pipe 2nd end
- Connection Type
- threaded external tube 1st end
- Mounting Position
- horizontal or vertical
- Maximum Operating Pressure
- 3000.0 pounds per square inch single response
- Nominal Thread Size
- 0.375 inches 2nd end
- Nominal Thread Size
- 0.375 inches 1st end
- Seat Angle
- 37.0 degrees 1st end
- Nominal Outside Diameter Tube Accommodated
- 0.187 inches 1st end
- Material
- rubber synthetic seat
- Media For Which Designed
- fuel/oil, hydrocarbon single response
- Style Designator
- angle
- Thread Series Designator
- npt 2nd end
- Thread Series Designator
- unf 1st end
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| 290B4AS | Check Valve |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 4820-00-115-9773?
Does the NSN 4820-00-115-9773 have a Schedule B code assigned?
Does NSN 4820-00-115-9773 require demilitarization?
Does NSN 4820-00-115-9773 contain precious materials?
Does NSN 4820-00-115-9773 contain hazardous materials?
When the NSN 4820-00-115-9773 was assigned to the Federal Catalog?
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