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Worldwide distributor of NSN parts and consumables located in the USA.

Check Valve

Model / MPN: 816A3T4T | NSN: 4820-00-928-7633
ITAR Registered seal

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

Product Details
NATO Stock Number
4820-00-928-7633
Sold in multiples of
DEMIL
NO
Thread Class
3a 2nd end
Thread Class
3a 1st end
Thread Direction
Right-hand 2nd end
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
300.0 degrees fahrenheit single response
Connection Style
External seat for gasket seal (boss) 1st end
Connection Style
External seat for gasket seal (boss) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded external boss 1st end
Connection Type
Threaded external boss 2nd end
Mounting Position
Horizontal or vertical
Maximum Operating Pressure
600.0 pounds per square inch single response
Thread Size
0.375 inches 2nd end
Thread Size
0.438 inches 1st end
Seat Angle
37.0 degrees 1st end
Seat Angle
37.0 degrees 2nd end
Material
Aluminum alloy 2024 body
Media For Which Designed
Hydraulic fluid, petroleum base single response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type 1 military specification single treatment response
Style Designator
Straight thru
Thread Series Designator
Unjf 1st end
Thread Series Designator
Unjf 2nd end

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816A3T4T Cross Reference