Check Valve

Model / MPN: 290B4AS | NSN: 4820-00-115-9773

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

4820-00-115-9773

Sold in multiples of

DEMIL

Pipe Size Accommodated

0.375 inches 2nd end

Thread Class

3a 1st end

Thread Direction

Right-hand 2nd end

Thread Direction

Right-hand 1st end

Flow Control Device

Poppet

Disk Loading Method

Spring

Renewable Seat Ring Type

Pressed-in

Connection Style

Plain (pipe) 2nd end

Valve Operation Method

Automatic

Connection Type

Threaded external pipe 2nd end

Connection Type

Threaded external tube 1st end

Mounting Position

Horizontal or vertical

Maximum Operating Pressure

3000.0 pounds per square inch single response

Thread Size

0.375 inches 2nd end

Thread Size

0.375 inches 1st end

Seat Angle

37.0 degrees 1st end

Outside Diameter Tube Accommodated

0.187 inches 1st end

Material

Rubber synthetic seat

Media For Which Designed

Fuel/oil, hydrocarbon single response

Style Designator

Angle

Thread Series Designator

Npt 2nd end

Thread Series Designator

Unf 1st end

290B Series Parts

Pricing and Availability

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Check Valve

Pricing and Availability

Certified Quality Assurance

290B4AS Cross Reference