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Fluid Pressure Regulating Valve

Model / MPN: 1669-1 | NSN: 4810-01-190-2836
ITAR Registered seal

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 ga (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.

Product Details
NATO Stock Number
4810-01-190-2836
Sold in multiples of
DEMIL
NO
Body Material
Aluminum alloy, qq-a-225/6, alloy 2024, t4
Outside Surface Treatment
Anodized, mil-a-8625, type 2
Body Style
Straight thru
Media For Which Designed
Hydraulic fluid, mil-h-5606
First End Connection Type
Threaded internal tube
First End Style Designator
Plain
First End Outside Diameter Tube Accommodated
2.025 inches
First End Thread Size And Series/type Designator
2 1/8-12 unjf
First End Thread Class
3a
First End Thread Direction
Right-hand
Second End Relationship With First End
Not identical
Second End Connection Type
Threaded external boss
Second End Style Designator
Gasket seal comression
Second End Thread Size And Series/type Designator
9/16-18 unjf
Second End Thread Class
3a
Second End Thread Direction
Right-hand
Seat Material
Steel, qq-s-763, class 440c
First End Seat Radius
0.062 inches
Packing Material
Plastic, tetrafluoroethylene
Flow Control Device
Poppet
Flow Control Device Material
Steel, qq-s-763, class 440c
End Connection Quantity
2
Renewable Seat Ring Type
Any acceptable
Regulation Type
Automatic single stage
Valve Loading Method
Spring
Outlet Pressure Setting
3500.0 pounds per square inch
Filter
Not included
Tempurature Rating
Between -40.0 degrees fahrenheit and 180.0 degrees fahrenheit
1669 Series Parts

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1669-1 Cross Reference