4820-01-178-6646

Find complete technical information, availability, and procurement data for: 4820-01-178-6646
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-178-6646

Item Name Code

32528

Assigment Date

05/09/1984 (42 years ago)

An item usually metallic, threaded or unthreaded, used for securing to or positioning into a mating part. It is designed to be used in a globe, relief, regulator valve and the like as a means of controlling the flow of liquids or gases in a given system. One end may have an integral disk or be designed to accommodate a metallic or nonmetallic disk. The other end is designed for a handwheel, lever, spring, diaphragm and the like for nonpowered operation or to accommodate a gear, solenoid, air motor and the like for powered operation. The handwheel and/or disk may be furnished with the item. Excludes:stem, faucet; and stem, needle valve.

0.375 inches nominal largest outside diameter, nickel alloy material, rising stem features provided, relief valve type for which designed, 2.000 inches valve size for which designed

Product Characteristics

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

Largest Outside Diameter: 0.375 inches nominal
Valve Type For Which Designed: relief
Features Provided: rising stem
Valve Size For Which Designed: 2.000 inches
Material: nickel alloy
Furnished Items And Quantity: 1 disk

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
A48569-2	Fluid Valve Stem

FAQs

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

What is the FSCG of the NSN 4820-01-178-6646?

The FSCG of the NSN 4820-01-178-6646 is 4820

Does the NSN 4820-01-178-6646 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-178-6646 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 4820-01-178-6646 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-178-6646 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 4820-01-178-6646 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Wed, May 9, 1984