NSN 4820-01-516-3990
Air Regulator Valve
Inlet connections are 1/8 inch - npt; outlet connections are 1/4 inch - npt.
Manufacturer part number 661A3 for national stock number 4820015163990.
Datasheet
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Product description
Fluid Pressure Regulating Valve NSN 4820-01-516-3990.
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MPN or Model
661A3
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Schedule B
8481.80.9015 (Regulator valves, self-operating, for controlling variables such as temperature, pressure, flow and liquid level) -
NMF (National Motor Freight)
127200 - Pressure Redcng Water Relief Valve -
Media For Which Designed
Air -
Flow Control Device
Diaphragm -
Flow Control Device Material
Rubber, synthetic -
End Connection Quantity
4 -
Mounting Facility
Bracket -
Regulation Type
Automatic double stage -
Valve Loading Method
Spring -
Maximum Inlet Pressure Rating
80.0 pounds per square inch -
End Application
Main engine lo controls 5-250-0-e no.3 mn eng rm -
Tempurature Rating
Between -40.0 degrees fahrenheit and 180.0 degrees fahrenheit -
Part Name Assigned By Controlling Agency
Model 661 amplifying relay with bias
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A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes regulator, pressure, medical gas administration apparatus; regulator, oxygen, barometric continuous flow; regulator, oxygen demand; regulator, oxygen diluter demand; and valve(1), fluid pressure regulating, aircraft.
![Mechanic Bill explains Air Regulator Valve](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 4820-01-516-3990 fluid pressure regulating valveManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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661A3 | Siemens Industry, Inc. |
245-7613088-ITEM-15 | Naval Sea Systems Command |
Stock Check
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