4820-00-204-2029

Find complete technical information, availability, and procurement data for: 4820-00-204-2029
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-204-2029

Item Name Code

22113

Assigment Date

01/01/1961 (65 years ago)

A shaft having two or more different diameters (greater than 0.031 inches (0.79 millimeter)) along its length. It must have one or more of the following conditions: a specified surface finish designation in the range 1 to 125 microinches (0.025 to 3.2 micrometers) arithmetical average (aa), machined peripheral flat(s), circular groove(s), keyway(s), splines, threads, or holes. The ends and/or shoulders may be machined to accommodate bearings, couplings, and the like. It is not designed for use in aligning by fitting into corresponding holes of another item. For items used to support rotating members see axle(1), shouldered. For items not having any of the above conditions see pin, shoulder, headless. Excludes:shaft(1), straight; and axle(1), straight.

angular seating surface shape, 0.3748 in. min,0.3750 in. max od body special features, 59.000 minimum and 61.000 maximum seat angle in deg, 0.075 inches minimum and 0.077 inches maximum body inside diameter, 0.084 inches minimum and 0.090 inches maximum overall height

Product Characteristics

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

Overall Height: 0.084 inches minimum and 0.090 inches maximum
Body Inside Diameter: 0.075 inches minimum and 0.077 inches maximum
Seat Angle In Deg: 59.000 minimum and 61.000 maximum
Seating Surface Shape: angular
Special Features: 0.3748 in. min,0.3750 in. max od body
Material: steel comp 303s overall
Material Document And Classification: mil-s-7720 mil spec single material response overall
Style Designator: plain

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
311545-6	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-204-2029?

The FSCG of the NSN 4820-00-204-2029 is 4820

Does the NSN 4820-00-204-2029 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-204-2029 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 4820-00-204-2029 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-204-2029 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 4820-00-204-2029 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961