NSN 4820-01-478-3710
Velocity Fuse
About this product
Second end vents to atmosphere. This valve release pressure in air brakes..
Manufacturer part number WHMBN1178DF for national stock number 4820014783710.
Datasheet
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Product description
Safety Relief Valve NSN 4820-01-478-3710.
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MPN or Model
WHMBN1178DF
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Schedule B
8481.40.0000 (Safety or relief valves) -
NMF (National Motor Freight)
051080 - Faucets, Bibcocks, Gates Valves -
Unit Weight (Est.)
0.1 lb -
Pipe Size Accommodated
0.560 inches 1st end -
Thread Direction
Right-hand 1st end -
End Application
2320-01-206-4089, truck, cargo. W/s code 5 t truck -
Connection Style
G9 plain, optional en (pipe) 1st end -
Valve Operation Method
Automatic -
Connection Type
Threaded internal pipe 1st end -
Thready Qty Per Inch (tpi)
18 1st end -
Thread Size
0.250 inches 1st end -
Opening Pressure Setting
250.0 pounds per square inch -
Part Name Assigned By Controlling Agency
Valve, relief -
Material
Copper alloy -
Media For Which Designed
Air single response -
Style Designator
Err-090 -
Thread Series Designator
Npt 1st end
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 4820-01-478-3710 safety relief valveManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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WHMBN1178DF | Windward Enterprises, Llc |
Stock Check
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