585-6404865-13

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-408-1656

Item Name Code

36944

Assigment Date

02/10/1995 (31 years ago)

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes:valve (1), relief, pressure and temperature.

nickel alloy material, 2.500 inches nominal overall length, threaded features provided, 1.250 inches nominal inside diameter, 2.115 inches nominal outside diameter

Product Characteristics

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

Inside Diameter: 1.250 inches nominal
Outside Diameter: 2.115 inches nominal
Overall Length: 2.500 inches nominal
Features Provided: threaded
Material: nickel alloy

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
211045443	Valve Piston
585-6404865-13	Valve Piston
DF2081-215-FN-13	Valve Piston

FAQs

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

What is the FSCG of the NSN 4820-01-408-1656?

The FSCG of the NSN 4820-01-408-1656 is 4820

Does the NSN 4820-01-408-1656 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-408-1656 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 4820-01-408-1656 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-408-1656 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 4820-01-408-1656 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Fri, Feb 10, 1995