4820-01-171-2831

Find complete technical information, availability, and procurement data for: 4820-01-171-2831
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-171-2831

Item Name Code

40088

Assigment Date

02/04/1984 (42 years ago)

A tubular shaped item designed to maintain a predetermined distance between optical elements, such as lenses, reticles, and the like. The bore may be straight, tapered or counterbored, and may have annular serrations to converge or diverge light rays. The surfaces, which mate with the optics, are usually chamfered, concave, and/or have a specified finish designation in the range of 1 to 125 microinches arithmetical average (aa). See also spacer, sleeve and cell, optical element.

air media for which designed, 4820-00-103-3517 end item identification

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: 4820-00-103-3517
Media For Which Designed: air

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
2651578	Special Actuator Valve Diaphragm

FAQs

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

What is the FSCG of the NSN 4820-01-171-2831?

The FSCG of the NSN 4820-01-171-2831 is 4820

Does the NSN 4820-01-171-2831 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-171-2831 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 4820-01-171-2831 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-171-2831 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 4820-01-171-2831 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Sat, Feb 4, 1984