A20684LH

View detailed technical data, stock status, and sourcing information for: A20684LH
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-288-6892

Item Name Code

05488

Assigment Date

01/01/1963 (63 years ago)

poppet flow control device, 8 1st end bolt hole quantity, 8 2nd end bolt hole quantity, threaded bonnet attachment method, inside spring bonnet type

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

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 1st end
Connection Type: flange 2nd end
Valve Size: 2.000 inches
Maximum Operating Pressure: 670.0 pounds per square inch single response
Nominal Outside Diameter: 6.500 inches 1st end
Nominal Outside Diameter: 7.562 inches 2nd end
Nominal Thickness: 0.812 inches 2nd end
Nominal Thickness: 1.000 inches 1st end
First Connection Face To Centerline Distance: 5.500 inches
Bolt Hole Nominal Diameter: 0.688 inches 1st end
Bolt Hole Nominal Diameter: 0.812 inches 2nd end
Second Connection Face To Centerline Distance: 5.312 inches
Bolt Circle Nominal Diameter: 3.000 inches 1st end
Bolt Circle Nominal Diameter: 6.000 inches 2nd end
Flange Face Design: plain 2nd end
Flange Face Design: raised straight 1st end
Raised Face Nominal Height: 0.250 inches 1st end
Raised Face Nominal Diameter: 2.625 inches 1st end
Material: steel body
Material: steel corrosion resisting flow control device
Material: steel corrosion resisting seat
Material: steel corrosion resisting stem
Style Designator: angle flanged ends
Reference Number Differentiating Characteristics: left hand valve

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
A20684LH	Safety Relief Valve

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4820-00-288-6892?

The FSCG of the NSN 4820-00-288-6892 is 4820

Does the NSN 4820-00-288-6892 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-288-6892 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 4820-00-288-6892 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-288-6892 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 4820-00-288-6892 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963