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 5835-00-466-8544
NSN 5920-00-127-9992
NSN 5996-01-561-4885
NSN 6650-01-319-6930
NSN 6135-01-255-9129
NSN 6135-01-377-5729
NSN 6240-01-564-1775
NSN 5975-00-435-7744
NSN 6105-01-321-0936
NSN 6220-00-806-7666
NSN 5930-01-425-4010
NSN 5895-01-088-7751