6650-00-143-1889

Find complete technical information, availability, and procurement data for: 6650-00-143-1889
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Federal Supply Group

Instruments and Laboratory Equipment

Federal Supply Classification

6650 Components and Accessories Test Equipment Optical Instruments

National Stock Number

6650-00-143-1889

Item Name Code

21879

Assigment Date

01/01/1963 (63 years ago)

A transparent item with at least two polished plane surfaces inclined toward each other, designed for use in optical instruments to reflect and/or refract a beam of light. It may have one or more mirrored surfaces for greater reflection. Includes optical wedges used to divert paths of light by refraction, but to a lesser degree. See also beam splitter, optical instrument.

34.0 millimeters nominal overall diameter, ground and polished surface finish, rangefinder mk58 end item identification, 6.1 angle in deg, 4.0 millimeters nominal overall thickness

Product Characteristics

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

Overall Diameter: 34.0 millimeters nominal
Overall Thickness: 4.0 millimeters nominal
Angle In Deg: 6.1
End Item Identification: rangefinder mk58
Surface Finish: ground and polished
Refraction Index: 1.5170 nominal
Light Deviation: 190.9 min
Material: glass optical
Material Document And Classification: jan-g-174 mil spec single material response
Style Designator: wedge type

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
278691PC1	Optical Instrument Prism

FAQs

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

What is the FSCG of the NSN 6650-00-143-1889?

The FSCG of the NSN 6650-00-143-1889 is 6650

Does the NSN 6650-00-143-1889 have a Schedule B code assigned?

Yes, the Schedule B code is 9018500000

Does NSN 6650-00-143-1889 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 6650-00-143-1889 contain precious materials?

Item does not contain precious metal.

Does NSN 6650-00-143-1889 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 6650-00-143-1889 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963