Part Number 89-6-19-63

Se Bifocal Ophthalmic Lens Blank

Pricing & Availability

Submit this form for current pricing and availability of this NSN.

Part Number

DEMIL

Shelf Life

UOM

NIIN

Part:

89-6-19-63

Demil:

Shelf Life:

UOM:

NIIN:

013111090

Part Information
Matl cr-39; flat top; segment positioned 5 mm below and 5 mm in from geometric center for right and left lenses, plus or minus 2 mm

NSN

National Stock Number:

6540-01-311-1090 6540013111090

TXT

Description:

Se Bifocal Ophthalmic Lens Blank

INC

Item Name Code:

30300

MRC:

The style designation indicating the configuration that most nearly corresponds to the cross-sectional shape of the item.AAGR

Cross Sectional Shape:

Sphere

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:

66.0 millimeters

MRC:

A measurement of the smallest dimension of an item,in distinction from length or width.ABNM

Thickness:

10.0 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

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:

1.750 bifocal

MRC:

None.AKQV

Reading Segment Diameter:

25.0 millimeters

MRC:

None.AKQW

Reading Segment Height:

17.500 inches

MRC:

A measurement of the base curve,expressed in diopters.AKQZ

Base Curve Diopter:

4.25 plus

MRC:

A measurement of the cross curve,expressed in diopters.AKRA

Cross Curve Diopter:

Any acceptable

MRC:

An indication of the light transmittance character of the item.AKZS

Light Transmission:

Untinted

MRC:

None.CWMT

Sphere Curve Inside Diopter:

Any acceptable

MRC:

None.CWND

Sphere Curve Outside Diopter:

Any acceptable

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

Part Number	RNVC	RNAAC	DAC	CAGE
89-6-19-63	1	KX	4	66732
P4.25 BC P1.75 ADD	2	KX	4	0FWW0

Code	Definition
FN	Factory New. Parts manufactured by then OEM and includes manufacturer certification.
NE	New. Parts manufactured by the OEM. May include manufacturer certification or company certification.
NS	New Surplus. New material item purchased from excess inventory.
OH	Overhauled. Product has been rebuilt and tested in accordance with the manufacturer's specifications by a repair shop (MRO).
SV	Serviceable product.
AR	As Removed. Product removed from aircraft or platform with no guarentee on the functionality of the part.
RP	Repairable. Product can be repaired by a MRO and be given a FAA 8130 or EASA Form 1 certification.

Part Number 89-6-19-63

Pricing & Availability

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