4820-01-312-1843

Find complete technical information, availability, and procurement data for: 4820-01-312-1843
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-312-1843

Item Name Code

20962

Assigment Date

12/12/1989 (36 years ago)

A metallic, threaded, screw-shaped item used in hydraulic brake cylinders, hydraulic power units, missile launching hydraulic systems, and the like, for the purpose of providing a means of releasing air form and/or flushing a hydraulic system. It may be furnished with or without a dust cap. Excludes:spring loaded or automatic type air pressure relief valves, and bolt, fluid passage.

manual valve operation method, flange all ends connection type, 450.0 fahrenheit single response maximum operating temp, 4 all ends bolt hole quantity, round with holes all ends flange shape

Product Characteristics

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

Bolt Hole Quantity: 4 all ends
Maximum Operating Temp: 450.0 fahrenheit single response
Valve Operation Method: manual
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 2.000 inches
Maximum Operating Pressure: 300.0 pounds per square inch single response
Nominal Outside Diameter: 6.000 inches all ends
Face To Face Distance: 8.500 inches
Nominal Thickness: 0.750 inches all ends
Bolt Hole Nominal Diameter: 0.625 inches all ends
Bolt Circle Nominal Diameter: 4.750 inches all ends
Third Connection Face To Centerline Distance: 4.250 inches
Flange Face Design: raised straight all ends
Raised Face Nominal Height: 0.062 inches all ends
Raised Face Nominal Diameter: 3.625 inches all ends
Material: copper alloy 836 body
Material: copper alloy 836 flow control device
Material: plastic polytetrafluoroethylene packing
Material: plastic polytetrafluoroethylene seat
Material: steel comp 316 stem
Style Designator: cross 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
DPB-17-F152 DP-17-88129-A	Ball Valve
DPN-HOL-A-Z129	Ball Valve

FAQs

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

What is the FSCG of the NSN 4820-01-312-1843?

The FSCG of the NSN 4820-01-312-1843 is 4820

Does the NSN 4820-01-312-1843 have a Schedule B code assigned?

Yes, the Schedule B code is 8481801085

Does NSN 4820-01-312-1843 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 4820-01-312-1843 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-312-1843 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 4820-01-312-1843 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Tue, Dec 12, 1989