4820-00-840-0943

Find complete technical information, availability, and procurement data for: 4820-00-840-0943
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-840-0943

Item Name Code

05487

Assigment Date

01/04/1967 (59 years ago)

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.

spring disk loading method, 2a all ends thread class, right-hand all ends thread direction, poppet flow control device, 275.0 fahrenheit single response maximum operating temp

Product Characteristics

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

Thread Class: 2a all ends
Thread Direction: right-hand all ends
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: 275.0 fahrenheit single response
Connection Style: external seat for gasket seal (boss) all ends
Valve Operation Method: automatic
Connection Type: threaded external boss all ends
Mounting Position: horizontal
Maximum Operating Pressure: 1500.0 pounds per square inch single response
Nominal Thread Size: 0.438 inches all ends
Seat Angle: 37.0 degrees all ends
Material: aluminum alloy seat
Material: aluminum alloy body
Material: aluminum alloy body lining
Material: steel corrosion resisting flow control device
Media For Which Designed: hydraulic fluid, phosphate-ester base single response
Surface Treatment: anodize
Style Designator: straight thru
Test Data Document: 99240-2c6404 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
Thread Series Designator: unf all 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
2C6404	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-840-0943?

The FSCG of the NSN 4820-00-840-0943 is 4820

Does the NSN 4820-00-840-0943 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-00-840-0943 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 4820-00-840-0943 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-840-0943 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 4820-00-840-0943 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Wed, Jan 4, 1967