PS2-4821-2
View detailed technical data, stock status, and sourcing information for: PS2-4821-2
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Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-00-781-7459
Item Name Code
05487
Assigment Date
01/01/1960 (66 years ago)
3a all ends thread class, 450.0 fahrenheit single response maximum operating temp, poppet flow control device, right-hand all ends thread direction, 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.
- Thread Class
- 3a all ends
- Thread Direction
- right-hand all ends
- Flow Control Device
- poppet
- Disk Loading Method
- spring
- Maximum Operating Temp
- 450.0 fahrenheit single response
- Connection Style
- flareless all ends
- Valve Operation Method
- automatic
- Connection Type
- threaded external tube all ends
- Mounting Position
- horizontal or vertical
- Maximum Operating Pressure
- 3000.0 pounds per square inch single response
- Nominal Thread Size
- 0.438 inches all ends
- Seat Angle
- 12.0 degrees all ends
- Nominal Outside Diameter Tube Accommodated
- 0.250 inches 1st end
- Material
- steel corrosion resisting overall
- Media For Which Designed
- water-oil-gas single response
- Style Designator
- straight thru
- Thread Series Designator
- unf all ends
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 1650-00-903-1124 | No Name Available | 03/13/1968 |
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:
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 4820-00-781-7459?
The FSCG of the NSN 4820-00-781-7459 is 4820
Does the NSN 4820-00-781-7459 have a Schedule B code assigned?
Yes, the Schedule B code is 8481302090
Does NSN 4820-00-781-7459 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 4820-00-781-7459 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-781-7459 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 4820-00-781-7459 was assigned to the Federal Catalog?
It was assigned 66 years ago, on Fri, Jan 1, 1960
Professional Distribution
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Pricing
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In Stock
This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.
| New Surplus | 7 |
| New Material | 626 |
| As Removed | 1 |
| Overhauled | 1 |
| Serviceable | 1 |
| Total | 636 |
Availability of this item was last updated on:
06/01/2026 05:06 AM EDT.
Stock levels and pricing are subject to change.