158B SZ 1 IN
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A valve with a stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first 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. In the second position, the valve disk is lifted from the seat to allow a flow of fluid in either direction through the valve. The valve disk may be spring loaded. See also valve, stop-check and valve, stop-lift-check.
right-hand all ends thread direction, threaded bonnet attachment method, inside screw bonnet type, 100.0 fahrenheit 2nd response maximum operating temp, disk 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.
- Thread Direction
- right-hand all ends
- Flow Control Device
- disk
- Bonnet Type
- inside screw
- Bonnet Attachment Method
- threaded
- Maximum Operating Temp
- 100.0 fahrenheit 2nd response
- Maximum Operating Temp
- 500.0 fahrenheit 1st response
- Connection Style
- plain, optional end (pipe) all ends
- Valve Operation Method
- automatic
- Connection Type
- threaded internal pipe all ends
- Mounting Position
- horizontal
- Maximum Operating Pressure
- 150.0 pounds per square inch 1st response
- Maximum Operating Pressure
- 300.0 pounds per square inch 2nd response
- Nominal Thread Size
- 1.000 inches all ends
- Material
- copper alloy 836 body
- Material
- copper alloy 836 seat
- Material
- rubber flow control device
- Material Document And Classification
- astm b62 assn std single material response body
- Material Document And Classification
- astm b62 assn std single material response seat
- Media For Which Designed
- steam 1st response
- Media For Which Designed
- water-oil-gas 2nd response
- Style Designator
- straight thru
- Thread Series Designator
- npt all ends
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 4820-00-068-3220 | No Name Available | 01/01/1992 |
| 4820-00-618-8666 | No Name Available | 09/01/1985 |
| 4820-00-883-0615 | No Name Available | 05/13/1966 |
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 |
|---|---|
| 012179-8 | Lift-Check Valve |
| 158B SZ 1 IN | Lift-Check Valve |
| 1B948-1IN | Lift-Check Valve |
| 7108-3018 | Lift-Check Valve |
| 73 1 IN | Lift-Check Valve |
| 901-125#-1IN. | Lift-Check Valve |
| FIG231 | Lift-Check Valve |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 4820-00-287-2777?
Does NSN 4820-00-287-2777 require demilitarization?
Does NSN 4820-00-287-2777 contain precious materials?
Does NSN 4820-00-287-2777 contain hazardous materials?
When the NSN 4820-00-287-2777 was assigned to the Federal Catalog?
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