4820-01-255-7793

Find complete technical information, availability, and procurement data for: 4820-01-255-7793
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-255-7793

Item Name Code

05487

Assigment Date

05/27/1987 (39 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.

flare (tube) all ends connection style, automatic valve operation method, right-hand all ends thread direction, 3b all ends thread class, threaded internal tube all ends connection type

Product Characteristics

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

Thread Class: 3b all ends
Thread Direction: right-hand all ends
Connection Style: flare (tube) all ends
Valve Operation Method: automatic
Connection Type: threaded internal tube all ends
Mounting Facility: lug
Mounting Position: vertical
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.438 inches all ends
Nominal Outside Diameter Tube Accommodated: 0.250 inches all ends
Special Features: subplate mounted
Media For Which Designed: water-oil-gas single response
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
F3-4CG-06A-20	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-255-7793?

The FSCG of the NSN 4820-01-255-7793 is 4820

Does the NSN 4820-01-255-7793 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-01-255-7793 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 4820-01-255-7793 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-255-7793 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 4820-01-255-7793 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Wed, May 27, 1987