4820-01-266-4221

Find complete technical information, availability, and procurement data for: 4820-01-266-4221
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-266-4221

Item Name Code

05488

Assigment Date

10/24/1987 (38 years ago)

A valve having one outlet and two inlets that are usually opposite each other. It has a fluid pressure operated pistonlike item, called a shuttle, that controls either inlet. It is commonly used to provide an emergency passage for fluid in an aircraft hydraulic or pneumatic system in case of loss of pressure in the normal service lines.

4820-01-266-4221, safety relief valve

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
6987-1-2IN 400-1050PSI	Safety Relief Valve
6987-1/2IN-400T600 PSI	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-266-4221?

The FSCG of the NSN 4820-01-266-4221 is 4820

Does the NSN 4820-01-266-4221 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-266-4221 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 4820-01-266-4221 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-266-4221 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 4820-01-266-4221 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Sat, Oct 24, 1987