4820-00-959-7299
Find complete technical information, availability, and procurement data for: 4820-00-959-7299
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A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes:valve (1), relief, pressure and temperature.
disk flow control device, 2.000 inches 1st end nominal pipe size accommodated, bolted bonnet attachment method, right-hand all ends thread direction, inside spring bonnet type
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
- 2.000 inches 1st end
- Thread Direction
- right-hand all ends
- Flow Control Device
- disk
- Bonnet Type
- inside spring
- Bonnet Attachment Method
- bolted
- Disk Loading Method
- spring
- Maximum Operating Temp
- 250.0 fahrenheit single response
- Connection Style
- plain,optional end(pipe) all ends
- Valve Operation Method
- automatic or manual
- Connection Type
- threaded internal pipe all ends
- Features Provided
- valve stem lock shield and bonnet packing
- Maximum Operating Pressure
- 160.0 pounds per square inch single response
- Nominal Thread Size
- 2.000 inches all ends
- Opening Pressure Setting
- 30.0 pounds per square inch
- Special Features
- w/diaphragm seal of bonnet cavity
- Material
- copper alloy 836 body
- Material
- copper alloy 836 or rubber silicone class q flow control device
- Material
- copper alloy 836 seat
- Material
- copper alloy stem
- Material Document And Classification
- qq-c-390,alloy b5/d fed spec 1st material response flow control device
- Material Document And Classification
- qq-c-390,alloy b5/d fed spec single material response body
- Material Document And Classification
- qq-c-390,alloy b5/d fed spec single material response seat
- Media For Which Designed
- steam 1st response
- Media For Which Designed
- water, fresh 2nd response
- Style Designator
- angle
- 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Below is a list of NSNs that have been officially superseded by this NSN: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 |
|---|---|---|
| 4820-00-825-3847 | No Name Available | 03/21/1974 |
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 |
|---|---|
| 174A 2IN30PSI | Safety Relief Valve |
FAQs
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What is the FSCG of the NSN 4820-00-959-7299?
Does the NSN 4820-00-959-7299 have a Schedule B code assigned?
Does NSN 4820-00-959-7299 require demilitarization?
Does NSN 4820-00-959-7299 contain precious materials?
Does NSN 4820-00-959-7299 contain hazardous materials?
When the NSN 4820-00-959-7299 was assigned to the Federal Catalog?
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