LD172589PC37

View detailed technical data, stock status, and sourcing information for: LD172589PC37
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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

6650-00-382-1825

Item Name Code

21884

Assigment Date

01/01/1963 (63 years ago)

An unmounted, transparent, color free lens which may be treated with a low reflection coating to increase light transmission. Includes single and compound elements. For items having two plane parallel surfaces, see window, optical instrument. Excludes:reticle, optical instrument.

1.417 inches nominal diameter, 0.415 inches nominal compound lens edge thickness, 8.526 inches equivalent focal length, 0.315 inches nominal and 0.157 inches nominal axial thickness, 0.472 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: 1.417 inches nominal
Axial Thickness: 0.315 inches nominal and 0.157 inches nominal
Compound Lens Overall Axial Thickness: 0.472 inches nominal
Compound Lens Edge Thickness: 0.415 inches nominal
Equivalent Focal Length: 8.526 inches
Back Focal Length: 8.281 inches
Front Focal Length: 8.473 inches
Refraction Index: 1.5740 nominal and 1.6210 nominal
Abbe Constant: 57.700 and 36.600
Compound Lens Style: doublet
Individual Lens Style: double convex and meniscus diverging
Element Left Surface Radius: -5.630 inches and -2.958 inches
Element Right Surface Radius: 2.958 inches and 19.685 inches
Material: glass optical
Material Document And Classification: mil-g-174, class 1, grade c mil spec single material response
Fsc Application Data: fire control,telescope mk 63

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
LD172589GP37	Optical Instrument Lens
LD172589PC37	Optical Instrument Lens

FAQs

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

What is the FSCG of the NSN 6650-00-382-1825?

The FSCG of the NSN 6650-00-382-1825 is 6650

Does the NSN 6650-00-382-1825 have a Schedule B code assigned?

Yes, the Schedule B code is 9018500000

Does NSN 6650-00-382-1825 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 6650-00-382-1825 contain precious materials?

Item does not contain precious metal.

Does NSN 6650-00-382-1825 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 6650-00-382-1825 was assigned to the Federal Catalog?

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