1040156

View detailed technical data, stock status, and sourcing information for: 1040156
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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

6650-00-382-1740

Item Name Code

21884

Assigment Date

01/01/1963 (63 years ago)

An item specifically designed to fit into the opening(s) of various items to provide mechanical protection and/or prevent the entrance of foreign matter during painting, shipping storage, or the like. It is not designed to retain fluids under pressure during equipment operation. Excludes:plug (as modified) and stopper, bottle. For items designed to fit into or over the opening(s) of various items, see cap-plug, protective, dust and moisture seal.

0.35433 inches nominal axial thickness, 0.12834 inches nominal compound lens edge thickness, 0.35433 inches nominal compound lens overall axial thickness, 3.370 inches equivalent focal length, 1.99212 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: 1.99212 inches nominal
Axial Thickness: 0.35433 inches nominal
Compound Lens Overall Axial Thickness: 0.35433 inches nominal
Compound Lens Edge Thickness: 0.12834 inches nominal
Equivalent Focal Length: 3.370 inches
Back Focal Length: 3.409 inches
Front Focal Length: 3.126 inches
Refraction Index: 1.6968 nominal
Abbe Constant: 56.200
Single Lens Style: meniscus converging
Individual Lens Style: meniscus converging
Element Left Surface Radius: -13.154 inches
Element Right Surface Radius: -2.015 inches
Material: glass optical
Material Document And Classification: jan-g-174, grade b mil spec single material response
Fsc Application Data: 1. fire control telescope mk 102 mod 3

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
1040156	Optical Instrument Lens

FAQs

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

What is the FSCG of the NSN 6650-00-382-1740?

The FSCG of the NSN 6650-00-382-1740 is 6650

Does the NSN 6650-00-382-1740 have a Schedule B code assigned?

Yes, the Schedule B code is 9018500000

Does NSN 6650-00-382-1740 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 6650-00-382-1740 contain precious materials?

Item does not contain precious metal.

Does NSN 6650-00-382-1740 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 6650-00-382-1740 was assigned to the Federal Catalog?

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