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

Safety Relief Valve

Model / MPN: A20684LH | NSN: 4820-00-288-6892
ITAR Registered seal

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.

Product Details
NATO Stock Number
4820-00-288-6892
Sold in multiples of
1 EA
DEMIL
NO
Flow Control Device
Poppet
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Bolt Hole Quantity
8 1st end
Bolt Hole Quantity
8 2nd end
Valve Operation Method
Automatic
Flange Shape
Round with holes 1st end
Flange Shape
Round with holes 2nd end
Connection Type
Flange 2nd end
Connection Type
Flange 1st end
Valve Size
2.000 inches
Maximum Operating Pressure
670.0 pounds per square inch single response
Outside Diameter
6.500 inches 1st end
Outside Diameter
7.562 inches 2nd end
Thickness
0.812 inches 2nd end
Thickness
1.000 inches 1st end
First Connection Face To Centerline Distance
5.500 inches
Bolt Hole Diameter
0.688 inches 1st end
Bolt Hole Diameter
0.812 inches 2nd end
Second Connection Face To Centerline Distance
5.312 inches
Bolt Circle Diameter
3.000 inches 1st end
Bolt Circle Diameter
6.000 inches 2nd end
Flange Face Design
Raised straight 1st end
Flange Face Design
Plain 2nd end
Raised Face Height
0.250 inches 1st end
Raised Face Diameter
2.625 inches 1st end
Material
Steel body
Material
Stainless steel flow control device
Material
Stainless steel seat
Material
Stainless steel stem
Style Designator
Angle flanged ends
Reference Number Differentiating Characteristics
Left hand valve

Pricing and Availability

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A20684LH Cross Reference