6650-00-828-6553

Find complete technical information, availability, and procurement data for: 6650-00-828-6553
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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

6650-00-828-6553

Item Name Code

21884

Assigment Date

01/01/1962 (64 years ago)

0.470 inches nominal compound lens overall axial thickness, 7.906 inches equivalent focal length, 0.375 inches nominal compound lens edge thickness, 0.150 inches nominal and 0.320 inches nominal axial thickness, 1.779 inches nominal diameter

Product Characteristics

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

Diameter: 1.779 inches nominal
Axial Thickness: 0.150 inches nominal and 0.320 inches nominal
Compound Lens Overall Axial Thickness: 0.470 inches nominal
Compound Lens Edge Thickness: 0.375 inches nominal
Equivalent Focal Length: 7.906 inches
Back Focal Length: 7.694 inches
Refraction Index: 1.6210 nominal and 0.5411 nominal
Abbe Constant: 36.200 and 59.900
Compound Lens Style: doublet
Individual Lens Style: meniscus diverging and double convex
Element Left Surface Radius: 5.300 inches
Element Right Surface Radius: 1.970 inches
Material: glass optical
Material Document And Classification: mil-g-174, class 1, grade c mil spec single material response
Fsc Application Data: telescope,elbow t176e2 and t176e3,integrated with fire control equipment

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
10512965	Optical Instrument Lens

FAQs

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

What is the FSCG of the NSN 6650-00-828-6553?

The FSCG of the NSN 6650-00-828-6553 is 6650

Does the NSN 6650-00-828-6553 have a Schedule B code assigned?

Yes, the Schedule B code is 9018500000

Does NSN 6650-00-828-6553 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 6650-00-828-6553 contain precious materials?

Item does not contain precious metal.

Does NSN 6650-00-828-6553 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 6650-00-828-6553 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962