4820-00-139-3853
Find complete technical information, availability, and procurement data for: 4820-00-139-3853
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A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.
disk flow control device, union bonnet attachment method, threaded renewable seat ring type, inside screw bonnet type, spring disk loading method
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Flow Control Device
- disk
- Bonnet Type
- inside screw
- Bonnet Attachment Method
- union
- Disk Loading Method
- spring
- Renewable Seat Ring Type
- threaded
- Bolt Hole Quantity
- 4 all ends
- Valve Operation Method
- manual
- Flange Shape
- round with holes all ends
- Connection Type
- flange all ends
- Mounting Position
- horizontal
- Features Provided
- bonnet packing
- Valve Size
- 2.500 inches
- Maximum Operating Pressure
- 225.0 pounds per square inch single response
- Nominal Outside Diameter
- 7.000 inches all ends
- Nominal Thickness
- 0.562 inches all ends
- First Connection Face To Centerline Distance
- 4.250 inches
- Bolt Hole Nominal Diameter
- 0.750 inches all ends
- Second Connection Face To Centerline Distance
- 4.250 inches
- Bolt Circle Nominal Diameter
- 5.500 inches all ends
- Flange Face Design
- plain all ends
- Material
- copper alloy body
- Material
- nickel alloy flow control device
- Material
- nickel alloy seat
- Material
- nickel alloy stem
- Media For Which Designed
- steam 1st response
- Media For Which Designed
- water-oil-gas 2nd response
- Style Designator
- angle flanged ends
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 |
|---|---|
| 1064-N | Stop-Check Valve |
| 1064-N 2 1/2IN | Stop-Check Valve |
| 1064NSC-212 | Stop-Check Valve |
| 139-2 1-2INM0D | Stop-Check Valve |
| 5003 2-1/2IN | Stop-Check Valve |
| FIGS783M0D | Stop-Check Valve |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
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Does the NSN 4820-00-139-3853 have a Schedule B code assigned?
Does NSN 4820-00-139-3853 require demilitarization?
Does NSN 4820-00-139-3853 contain precious materials?
Does NSN 4820-00-139-3853 contain hazardous materials?
When the NSN 4820-00-139-3853 was assigned to the Federal Catalog?
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