LD172589GP99

View detailed technical data, stock status, and sourcing information for: LD172589GP99
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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

6650-00-382-1939

Item Name Code

21884

Assigment Date

01/01/1963 (63 years ago)

0.630 inches nominal diameter, 1.506 inches equivalent focal length, 0.256 inches nominal and 0.059 inches nominal axial thickness, 0.252 inches nominal compound lens edge thickness, 0.315 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: 0.630 inches nominal
Axial Thickness: 0.256 inches nominal and 0.059 inches nominal
Compound Lens Overall Axial Thickness: 0.315 inches nominal
Compound Lens Edge Thickness: 0.252 inches nominal
Equivalent Focal Length: 1.506 inches
Back Focal Length: 1.565 inches
Front Focal Length: 1.251 inches
Refraction Index: 1.5170 nominal and 1.6490 nominal
Abbe Constant: 64.500 and 33.800
Compound Lens Style: doublet
Individual Lens Style: double convex and plano-concave
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 75

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
1240-00-382-1879	No Name Available	01/01/1963

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
LD172589GP99	Optical Instrument Lens
LD172598GP3	Optical Instrument Lens
LD172598PC3	Optical Instrument Lens

FAQs

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

What is the FSCG of the NSN 6650-00-382-1939?

The FSCG of the NSN 6650-00-382-1939 is 6650

Does the NSN 6650-00-382-1939 have a Schedule B code assigned?

Yes, the Schedule B code is 9018500000

Does NSN 6650-00-382-1939 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 6650-00-382-1939 contain precious materials?

Item does not contain precious metal.

Does NSN 6650-00-382-1939 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 6650-00-382-1939 was assigned to the Federal Catalog?

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