4820-01-348-4274

Find complete technical information, availability, and procurement data for: 4820-01-348-4274
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-348-4274

Item Name Code

20520

Assigment Date

11/09/1991 (34 years ago)

A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.

4820-01-348-4274, restrictor check 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
10124716	Restrictor Check Valve
74B698026-101	Restrictor Check Valve
MC19099-1	Restrictor Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-348-4274?

The FSCG of the NSN 4820-01-348-4274 is 4820

Does the NSN 4820-01-348-4274 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-01-348-4274 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 4820-01-348-4274 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-348-4274 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 4820-01-348-4274 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Sat, Nov 9, 1991