NSN 4820-00-837-9969
Velocity Fuse
About this product
Poppet flow control device, packing retaining bonnet type, spring disk loading method, renewable seat ring type: pressed-in.
Manufacturer part number A318383-3 for national stock number 4820008379969.
Datasheet
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Product description
Safety Relief Valve NSN 4820-00-837-9969.
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MPN or Model
A318383-3
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Schedule B
8481.40.0000 (Safety or relief valves) -
NMF (National Motor Freight)
127220 - Pressure Reg/red/relief Valves NOI -
Unit Weight (Est.)
5.8 lb -
Thread Class
3a 1st end -
Thread Direction
Right-hand 1st end -
Flow Control Device
Poppet -
Bonnet Type
Packing retaining -
Disk Loading Method
Spring -
Renewable Seat Ring Type
Pressed-in -
Connection Style
G50 external seat for gasket seal (boss) 1st end -
Valve Operation Method
Automatic -
Connection Type
Threaded external boss 1st end -
Features Provided
Pressure tight outlet side -
Thready Qty Per Inch (tpi)
12 1st end -
Adjustable Pressure Range
+910.0/+1010.0 pounds per square inch -
Thread Size
1.750 inches 1st end -
Style Designator
Err-090 -
Thread Series Designator
Un 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 4820-00-837-9969 safety relief valveManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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A318383-3 | Naval Air Warfare Center Aircraft |
Stock Check
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