4820-01-540-7821

Find complete technical information, availability, and procurement data for: 4820-01-540-7821
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-540-7821

Item Name Code

22113

Assigment Date

06/02/2006 (20 years ago)

A straight shaft having two or more of the following conditions: a specified surface finish designation in the range of 1 to 125 microinches (o.o25 to 3.2 micrometers), arithmetical average (aa), machined peripheral flat(s), circular groove (s), keyway(s), splines, threads, or holes. It is not designed for use in aligning by fitting into corresponding holes of another item. It may be drilled for lubricating holes. For items having an integral gear(s) or worm(s), see gearshaft (as modified). For items designed to support rotating members see axle(1), straight. For items not having the above conditions see pin, straight, headless. For items having machined ends which constitute steps see shaft(1), shouldered; axle(1), shouldered; and bolt, fluid passage.

angular seating surface shape, plastic polytetrafluoroethylene seat material, reactor boundry area end item identification, nha: 4820-01-475-5087; valve, ball special features

Product Characteristics

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

End Item Identification: reactor boundry area
Seating Surface Shape: angular
Special Features: nha: 4820-01-475-5087; valve, ball
Material: plastic polytetrafluoroethylene seat

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
HBV-A2-04-0041DET2	Valve Seat
HBV-A2-04-0041DET4	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-540-7821?

The FSCG of the NSN 4820-01-540-7821 is 4820

Does the NSN 4820-01-540-7821 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-540-7821 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 4820-01-540-7821 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-540-7821 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 4820-01-540-7821 was assigned to the Federal Catalog?

It was assigned 20 years ago, on Fri, Jun 2, 2006