6540-01-374-5857

Semifinished Bifocal Ophthalmic Lens Blank email this page

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Reference images of this national stock number
Reference of NSN 6540-01-374-5857

Model or part number: P8.50BC,P3.00ADD

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About this product
8.50 diopter base curve; cr-39,convex; index refraction 1.498 on carrier lens

pdf NSN 6540-01-374-5857 Datasheet

MRC:
The length of a straight line which passes through the center of a circular figure or body,and terminates at the circumference.ABMZ
Diameter:
71.0 millimeters
MRC:
The element,compound,or mixture of which the item is fabricated,excluding and surface treatment,and its location.AKEL
Material And Location:
Plastic bifocal
MRC:
A section and/or sections of ophthalmic glass with a higher index of refraction which has been added to the major lens,expressed in diopters.AKQM
Additional Power Rating In Diopters:
3.000 bifocal
MRC:
None.AKQV
Reading Segment Diameter:
28.0 millimeters
MRC:
None.AKQW
Reading Segment Height:
19.0 millimeters
MRC:
An indication of the light transmittance character of the item.AKZS
Light Transmission:
Untinted
MRC:
The name assigned to the item by the government agency or commercial organization controlling the design of the item.CXCY
Product Name:
Lens blank ophthalmic bifocal semifinished plas a2 rd 71mm dia
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL
Style Designator:
Round with straight top bifocal segment
MRC:
--
NIIN:
013745857
MRC:
--
NATO Stock Number:
6540-01-374-5857
MRC:
--
Shelf Life:
N/A
MRC:
--
UOM:
--
MRC:
--
DEMIL:
No
FIIG:
--
FIIG:
A22000
MRC:
--
INC:
30300
MRC:
--
IMM:
KX
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Factory New, New Material, New Surplus, Overhauled, Serviceable, Repairable, and AS Removed / Used material will be accompanied by a Certificate of Conformance, and any other documents/trace when applicable. We have a 7 year record retention.

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Quality | ISO 9001:2015 + AS9120B

We are committed to quality and follow an AS9120 quality management system. AeroBase Group is HAZMAT certified and registered with DDTC, ITAR, and Aviation Suppliers Association (ASA). All products are 100% inspected.

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Shipping

Delivery of IN-STOCK orders ship same-day when order is placed before 2:00 PM EST.

Delivery dates for NON-STOCK items are estimates based on current backlog and are subject to confirmation at the time of order.

Formal Definition

Government issue definition of NSN 6540-01-374-5857

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.

Import / Export

Schedule B Classification
Schedule B Number
NAIC National Association of Insurance Commissioners
End Use A classification system for U.S. exported and imported merchandise based on principal use rather than the physical characteristics of the merchandise. End-Use codes are assigned by the Bureau of Economic Analysis under the U.S. Department of Commerce.
SITC Commodity classification system defined by the United Nations.
USDA
HITECH
Schedule B:
7014001000
NAICS:
327212
End Use Class:
12770
SITC:
66595
USDA:
1
HITECH:
0

Schedule B Codes Definitions:

Schedule B 7014001000

Lens Blanks (other Than For Spectacles) Not Optically Worked, Of Glass, (optical Elements)

End Use Code 12770

Other Industrial Supplies

Standard Intl. Trade Class (SITC) 66595

Signalling Glassware and Optical Elements Of Glass (other Than Elements For Spectacles) Not Optically Worked

Freight

Universal / National freight and handling information
NMFC
Class
UFC
LTL
LCL
WCC
TCC
SHC
ADC
ACC
NMFC:
057940
NMF Description:
Lenses Optical Noi
UFC:
33020
LTL:
Rating variable
LCL:
--
WCC:
744
TCC:
Z
SHC:
9
ADC:
A
ACC:
M

Freight Codes Definitions:

Cargo Type (TCC) Z

No special type of cargo code applicable.

Water Commodity (WCC) 744

Optical goods.

Air Commodity (ACC) M

Medical supplies, equipment, samples, records, etc..

Air Dimensions (ADC) A

Shipment is not a consolidation and does not exceed 84 inches in any dimension.

Air Special Handling (SHC) 9

Other or no special handling required (sh)

Manufacturers

This NSN is registered to the following cage codes.
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