6650-01-283-7934

Find complete technical information, availability, and procurement data for: 6650-01-283-7934
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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

6650-01-283-7934

Item Name Code

21859

Assigment Date

08/12/1988 (38 years ago)

A cylindrical item having an internally flanged diameter designed to retain a lens or window in the objective end, or a diopter scale at the viewing end of an optical instrument. It may have one or more of the following characteristics: internal thread or machined for a press fit, method of securing, and/or knurled periphery. For externally threaded items, see retainer, optical element. Excludes:cell, optical element; nut, plain knurled; nut, plain round; and ring, retaining.

1 23/32-20 thread size, 0.100 inches thread length, +1.6818 to 1.6862 inches thread pitch diameters, 3b thread class, 1.900 inches nominal overall diameter

Product Characteristics

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

Thread Class: 3b
Thread Pitch Diameters: +1.6818 to 1.6862 inches
Thread Length: 0.100 inches
Thread Size: 1 23/32-20
Overall Diameter: 1.900 inches nominal
Screw Thread Series Designator: uns
Thread Location: internal
Special Features: 125 and 250 microinch surface as required
Material: aluminum alloy 356.0

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
5525604	Optical Element Cell

FAQs

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

What is the FSCG of the NSN 6650-01-283-7934?

The FSCG of the NSN 6650-01-283-7934 is 6650

Does the NSN 6650-01-283-7934 have a Schedule B code assigned?

Yes, the Schedule B code is 9018500000

Does NSN 6650-01-283-7934 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 6650-01-283-7934 contain precious materials?

Item does not contain precious metal.

Does NSN 6650-01-283-7934 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 6650-01-283-7934 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Fri, Aug 12, 1988