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 5925-00-815-3319
NSN 6135-00-437-5182
NSN 5950-01-221-2362
NSN 2925-01-527-8745
NSN 5930-00-115-8570
NSN 6610-00-189-7520
NSN 5925-00-703-3627
NSN 5895-01-462-0648
NSN 5996-00-823-9164
NSN 2925-01-467-7672
NSN 6320-01-473-3848
NSN 6105-01-046-1434