Optical Instrument Lens NSN 6650-00-626-1891

Item Description

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.

NSN: 6650-00-626-1891

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Features and Characteristics

Diameter

1.650 inches

Axial Thickness

0.100 inches and 0.610 inches

Compound Lensaxial Thickness

0.710 inches

Compound Lens Edge Thickness

0.531 inches

Equivalent Focal Length

6.532 inches

Back Focal Length

7.274 inches

Refraction Index

1.6490 and 1.6200

Abbe Constant

33.800 and 60.300

Compound Lens Style

Doublet

Individual Lens Style

Double concave and double convex

Element Left Surface Radius

2.656 inches

Element Right Surface Radius

1.663 inches

Material

Glass, optical, mil-g-174, class 1, grade c

Material

Glass optical

Material Specification

Mil-g-174, class 1, grade c military specification single material response

Fsc Application Data

Periscope, integrated with fire control equipment

FSC

6650 Components And Accessories Test Equipment Optical Instruments

NIIN

006261891

NSN

6650006261891

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

8289260

Cage Code:

19200

Status:

MSDS:

Part Number:

1240006261891

Cage Code:

A00AM

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 9018500000
NAICS: 339115
SITC: 87225
Description: Other ophthalmic instruments and appliances and parts and accessories
End Use (Code 21610):
Medicinal equipment

Q & A

Frequently asked questions for NSN 6650-00-626-1891

What are the manufacturers of nsn 6650006261891?

Us Army Ardec Rdecom (19200)
E.c.a Etablissement Central (A00AM)

Does this nsn 6650006261891 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 6650006261891
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.

Does nsn 6650006261891 contain any precious metals?
No precious metal content.

Does nsn 6650006261891 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 6650006261891?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

21884

FIIG:

T271-E

App. Key:

Cond. Code:

Status:

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On Time Delivery
Certificate of Conformance
Quality Inspected Parts
Quality Fast Service