NSN 4820-01-472-9758
Velocity Fuse
About this product
Male pipe thread; seal is buna n; diam is 1.45"; length is 1.98".
Manufacturer part number 559B-4M-2.5 for national stock number 4820014729758.
Datasheet
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Product description
Safety Relief Valve NSN 4820-01-472-9758.
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MPN or Model
559B-4M-2.5
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Schedule B
8481.40.0000 (Safety or relief valves) -
NMF (National Motor Freight)
127220 - Pressure Reg/red/relief Valves NOI -
Pipe Size Accommodated
0.500 inches all ends -
Thread Direction
Right-hand all ends -
Maximum Operating Temp
250.0 degrees fahrenheit single response -
Minimum Operating Temp
-40.0 degrees fahrenheit -
Connection Style
G41b inverted flare (pipe) all ends -
Valve Operation Method
Automatic -
Connection Type
Threaded external pipe all ends -
Opening Pressure Setting
2.5 pounds per square inch -
Material
Copper alloy body -
Style Designator
Err-090
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Safety Relief Valve
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.
![Mechanic Bill explains Velocity Fuse](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 4820-01-472-9758 safety relief valveManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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559B-4M-2.5 | Circor Aerospace, Inc. |
Stock Check
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