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Se Bifocal Ophthalmic Lens Blank NSN 6540-00-104-4986

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 6540-00-104-4986 NSN: 6540-00-104-4986

  Stock Availability

NSN 6540001044986 availability
(as of 02/12/2024).

  • NS: 21
  • NE: 12

Note: Availability of this item may have changed since it was last checked. Request a quote for an updated price and availability quote.

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Features and Characteristics

Cross Sectional Shape
Sphere
Diameter
65.0 millimeters
Thickness
Any acceptable
Material And Location
Glass, soda-lime single vision and glass, barium bifocal
Additional Power Rating In Diopters
1.250 bifocal
Reading Segment Diameter
25.0 millimeters
Reading Segment Height
17.5 millimeters
Base Curve Diopter
8.25 plus
Cross Curve Diopter
Any acceptable
Light Transmission
Untinted
Sphere Curve Inside Diopter
Any acceptable
Sphere Curve Outside Diopter
Any acceptable
Part Name Assigned By Controlling Agency
Lens blank ophthalmic semifinished bifocal plus 8.25-plus 1.25
Exterior Container Weight
45.00 pounds
Exterior Container Cubic Measure
1.100 cubic feet
Exterior Container Quantity
180
Intermediate Package Quantity
5
Style Designator
Round with straight top bifocal segment
Unit Of Issue Cube
0.0061 cubic feet
Supplementary Features
Suitable for coating; for use w/aviation spectacle frames
Unit Of Issue Weight
0.25 pounds
Nondefinitive Specification/std Data
1 type and a class
Departure From Cited Designator
As modified by diameter
FSC
6540 Supplies Equipment Ophthalmic Instruments
NIIN
001044986
NSN
6540001044986

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MILL16991
Cage Code:
81349
Status:
A
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 6540-00-104-4986
What are the manufacturers of nsn 6540001044986?
Does this nsn 6540001044986 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 6540001044986
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 6540001044986 contain any precious metals?
No precious metal content.
Does nsn 6540001044986 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 6540001044986?
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:
AF
Cond. Code:
1
Status:
A

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