Se Bifocal Ophthalmic Lens Blank NSN 6540-01-310-4964

Item Description

A transparent optical element consisting of a major blank and a bifocal segment. The blank and segment have been pressed in a glass mold to an approximate size and shape, and are ground and polished to a finished diopter curvature on one surface only.

NSN: 6540-01-310-4964

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Features and Characteristics

Cross Sectional Shape

Sphere

Diameter

66.0 millimeters

Thickness

7.5 millimeters

Material And Location

Plastic

Additional Power Rating In Diopters

2.750 bifocal

Reading Segment Diameter

25.0 millimeters

Reading Segment Height

17.500 inches

Base Curve Diopter

6.25 plus

Cross Curve Diopter

Any acceptable

Light Transmission

Untinted

Sphere Curve Inside Diopter

Any acceptable

Sphere Curve Outside Diopter

Any acceptable

Special Features

Flat top; cr-39; segment positioned 5 mm below and 5 mm in from geometric center for right and left lenses (porm 2 mm)

Style Designator

Round with straight top bifocal segment

FSC

6540 Supplies Equipment Ophthalmic Instruments

NIIN

013104964

NSN

6540013104964

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

89-6-19-26

Cage Code:

66732

Status:

MSDS:

Part Number:

A89E196

Cage Code:

66732

Status:

MSDS:

Part Number:

P6.25 BC P2.75 ADD

Cage Code:

0FWW0

Status:

MSDS:

Foreign Trade & Schedule B

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

Schedule B Number: 7014001000
NAICS: 327212
SITC: 66595
Description: Lens blanks (other than for spectacles) not optically worked, of glass, (optical elements)
End Use (Code 12770):
Other industrial supplies

Q & A

Frequently asked questions for NSN 6540-01-310-4964

What are the manufacturers of nsn 6540013104964?

Department Of The Army (66732)
Icare Industries Inc (0FWW0)

Does this nsn 6540013104964 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 6540013104964
A transparent optical element consisting of a major blank and a bifocal segment. the blank and segment have been pressed in a glass mold to an approximate size and shape, and are ground and polished to a finished diopter curvature on one surface only.

Does nsn 6540013104964 contain any precious metals?
No precious metal content.

Does nsn 6540013104964 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 6540013104964?
No known electrostatic discharge.

Identification Group

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

INC

FIIG

App. Key

Cond. Code

Status

INC:

30300

FIIG:

A22000

App. Key:

Cond. Code:

Status:

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