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 5935-00-755-9684
NSN 5895-01-351-2191
NSN 5835-00-310-6807
NSN 5835-00-221-6628
NSN 5945-00-094-0583
NSN 6620-01-299-4354
NSN 5985-01-306-0478
NSN 6685-00-196-5592
NSN 6145-01-603-9302
NSN 5965-01-408-9551
NSN 7035-01-586-7715
NSN 5915-01-633-9845