4820-00-939-8101

Find complete technical information, availability, and procurement data for: 4820-00-939-8101
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-939-8101

Item Name Code

05488

Assigment Date

11/30/1965 (60 years ago)

outside screw-yoke bonnet type, spring disk loading method, 4 all ends bolt hole quantity, poppet flow control device, bolted bonnet attachment method

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: outside screw-yoke
Bonnet Attachment Method: bolted
Disk Loading Method: spring
Bolt Hole Quantity: 4 all ends
Maximum Operating Temp: 650.0 fahrenheit single response
Valve Operation Method: automatic or manual
Flange Shape: round with holes all ends
Connection Type: flange all ends
Features Provided: pressure tight outlet side
Valve Size: 1.500 inches
Adjustable Pressure Range: +95.0 to 105.0 pounds per square inch
Maximum Operating Pressure: 600.0 pounds per square inch single response
Nominal Outside Diameter: 6.125 inches 2nd end
Nominal Outside Diameter: 7.000 inches 1st end
Nominal Thickness: 0.875 inches all ends
First Connection Face To Centerline Distance: 4.875 inches
Bolt Hole Nominal Diameter: 0.750 inches 1st end
Bolt Hole Nominal Diameter: 0.875 inches 2nd end
Second Connection Face To Centerline Distance: 4.750 inches
Bolt Circle Nominal Diameter: 4.500 inches 2nd end
Bolt Circle Nominal Diameter: 5.500 inches 1st end
Flange Face Design: raised straight all ends
Raised Face Nominal Height: 0.062 inches 1st end
Raised Face Nominal Height: 0.250 inches 2nd end
Raised Face Nominal Diameter: 2.750 inches 2nd end
Raised Face Nominal Diameter: 3.562 inches 1st end
Material: steel body
Material: steel corrosion resisting flow control device
Material: steel corrosion resisting stem
Style Designator: angle flanged ends

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
1811 HA-0-3X1-M-20(2WA999)	Safety Relief Valve
2WA999	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-939-8101?

The FSCG of the NSN 4820-00-939-8101 is 4820

Does the NSN 4820-00-939-8101 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-939-8101 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 4820-00-939-8101 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-939-8101 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 4820-00-939-8101 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Tue, Nov 30, 1965