6650-00-531-6908

Find complete technical information, availability, and procurement data for: 6650-00-531-6908
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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

6650-00-531-6908

Item Name Code

21884

Assigment Date

01/01/1963 (63 years ago)

A headless, generally cylindrically-shaped item having a straight, smooth, solid body, with or without a drilled hole(s). It has an outside diameter equal to or less than its length. Its length must not exceed twelve inches (304 mm); for items whose length exceeds twelve inches (304 mm); see rod,straight,headless. It is used for aligning or transfer of torque and/or thrust, by fitting into corresponding holes of another item. See also pin,straight,threaded.

0.670 inches nominal compound lens overall axial thickness, 2.255 inches nominal diameter, 14.130 inches equivalent focal length, 13.744 inches back focal length, 0.393 inches nominal and 0.277 inches nominal axial thickness

Product Characteristics

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

Diameter: 2.255 inches nominal
Axial Thickness: 0.393 inches nominal and 0.277 inches nominal
Compound Lens Overall Axial Thickness: 0.670 inches nominal
Equivalent Focal Length: 14.130 inches
Back Focal Length: 13.744 inches
Refraction Index: 1.5170 nominal and 1.6170 nominal
Abbe Constant: 64.500 and 36.600
Compound Lens Style: doublet
Individual Lens Style: double convex and meniscus
Element Left Surface Radius: -6.082 millimeters and 7.390 millimeters
Element Right Surface Radius: -35.390 millimeters and -6.082 millimeters
Material: glass optical
Material Document And Classification: mil-g-174, grade c, type 517-645 mil spec single material response

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
5316908	Optical Instrument Lens

FAQs

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

What is the FSCG of the NSN 6650-00-531-6908?

The FSCG of the NSN 6650-00-531-6908 is 6650

Does the NSN 6650-00-531-6908 have a Schedule B code assigned?

Yes, the Schedule B code is 9018500000

Does NSN 6650-00-531-6908 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 6650-00-531-6908 contain precious materials?

Item does not contain precious metal.

Does NSN 6650-00-531-6908 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 6650-00-531-6908 was assigned to the Federal Catalog?

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