Part Number
DEMIL
Shelf Life
UOM
NIIN
Part Information
Reflection reducing treatment on front andback surfaces, jan-m-621
NSN
National Stock Number:
TXT
Description:
Optical Instrument Lens
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:
Between 0.686 inches and 0.689 inches
MRC:
A measurement of the axial thickness of an item,in distinction from length or width.BMLY
Axial Thickness:
0.236 inches and 0.024 inches
MRC:
An overall measurement of the smallest dimension through the center of the outer surfaces of a compound lens,in distinction from length or width.BMMN
Compound Lensaxial Thickness:
Between 0.240 inches and 0.272 inches
MRC:
A measurement of the smallest dimension across the edge of a compound lens from one surface to the other,in distinction from length or width.BMMP
Compound Lens Edge Thickness:
0.166 inches
MRC:
A measurement of the longest dimension from the center of a lens to either of its focal points,in distinction from width.BMMS
Equivalent Focal Length:
1.444 inches
MRC:
A measurement of the longest reciprocal dimension from the back surface of the lens to the secondary focal point,in distinction from width.BMMT
Back Focal Length:
1.281 inches
MRC:
An indication of the ratio of the speed of light in the first medium to its speed in the second medium.BMMX
Refraction Index:
1.5411 and 1.6210
MRC:
The fixed angle of refraction of the abbe prism.BMMZ
Abbe Constant:
59.900 and 36.200
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of a compound lens.BMSC
Compound Lens Style:
Doublet
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of an individual lens.BMSD
Individual Lens Style:
Double convex and meniscus diverging
MRC:
The radius of the left surface of the element.CTKW
Element Left Surface Radius:
0.793 inches and -0.595 inches
MRC:
The radius of the right surface of the element.CTKX
Element Right Surface Radius:
-0.595 inches and -4.220 inches
MRC:
The element,compound,or mixture of which an item is fabricated,excluding any surface treatment.MATL
Material:
Glass, optical, mil-g-174, grade c, type 541-599 or glass, optical, mil-g-174, grade c, type 621-362
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Glass, optical, mil-g-174, grade c, type 541-599 or glass, optical, mil-g-174, grade c, type 621-362
MRC:
The justification for the assignment of a federal supply class /fsc/ to an item based on the classification of the next higher classifiable assembly.ZZZV
Fsc Application Data:
Binocular, m7, m16
