6650-00-518-4994

Find complete technical information, availability, and procurement data for: 6650-00-518-4994
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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

6650-00-518-4994

Item Name Code

21884

Assigment Date

01/01/1963 (63 years ago)

0.060 inches nominal and 0.539 inches nominal axial thickness, 1.467 inches nominal diameter, 7.522 inches equivalent focal length, 0.481 inches nominal compound lens edge thickness, 0.599 inches nominal compound lens overall 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: 1.467 inches nominal
Axial Thickness: 0.060 inches nominal and 0.539 inches nominal
Compound Lens Overall Axial Thickness: 0.599 inches nominal
Compound Lens Edge Thickness: 0.481 inches nominal
Equivalent Focal Length: 7.522 inches
Back Focal Length: 8.315 inches
Refraction Index: 1.6170 nominal and 1.5170 nominal
Abbe Constant: 36.600 and 64.500
Compound Lens Style: doublet
Individual Lens Style: double concave and double convex
Element Left Surface Radius: -3.027 inches and 1.398 inches
Element Right Surface Radius: 1.398 inches
Material: glass optical
Material Document And Classification: jan-g-174, grade c mil spec single material response
Fsc Application Data: observation instrument m1

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
5184994	Optical Instrument Lens

FAQs

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

What is the FSCG of the NSN 6650-00-518-4994?

The FSCG of the NSN 6650-00-518-4994 is 6650

Does the NSN 6650-00-518-4994 have a Schedule B code assigned?

Yes, the Schedule B code is 9018500000

Does NSN 6650-00-518-4994 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 6650-00-518-4994 contain precious materials?

Precious metal content is unknown

Does NSN 6650-00-518-4994 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 6650-00-518-4994 was assigned to the Federal Catalog?

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