An optical system consisting of two or more lenses secured within a cylindrical sleeve. It is the component of an optical instrument nearest the eye of the observer when sighting. The distance between lenses is maintained by an optical element spacer. It usually has focusing facilities and may include a reticle, filter, and/or diopter scale.
Classification: Military equipments not identified by kind
NSN 5950-00-133-2970
NSN 5935-01-427-9583
NSN 5930-01-444-4074
NSN 5998-00-271-1555
NSN 5895-01-271-5865
NSN 6145-00-695-9568
NSN 5950-01-390-7614
NSN 5950-00-990-5570
NSN 6130-01-602-0889
NSN 6220-01-062-2077
NSN 6105-00-368-0066
NSN 5960-01-023-8037