NSN 4820-00-323-4964
Velocity Fuse
About this product
Cone flow control device, gasket sea (boss) 1st end connection style, automatic valve operation method, connection type: threaded internal boss 1st end.
Manufacturer part number A20021 for national stock number 4820003234964.
Datasheet
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Product description
Safety Relief Valve NSN 4820-00-323-4964.
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MPN or Model
A20021
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Schedule B
8481.40.0000 (Safety or relief valves) -
NMF (National Motor Freight)
127220 - Pressure Reg/red/relief Valves NOI -
Thread Class
3b 1st end -
Thread Direction
Right-hand 1st end -
Flow Control Device
Cone -
Connection Style
Gasket sea (boss) 1st end -
Valve Operation Method
Automatic -
Connection Type
Threaded internal boss 1st end -
Thready Qty Per Inch (tpi)
20 1st end -
Maximum Operating Pressure
3000.0 pounds per square inch single response -
Thread Size
0.437 inches 1st end -
Media For Which Designed
Hydraulic fluid, petroleum base single response -
Style Designator
Err-090 -
Thread Series Designator
Unjf 1st end
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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 4820-00-323-4964 safety relief valveManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
A20021 | Hydro-aire, Inc. |
A20021 | Virco Mfg Corp |
Stock Check
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