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 2925-01-106-3552
NSN 5935-00-420-7423
NSN 5920-01-102-3248
NSN 6320-01-203-9864
NSN 5855-00-361-0167
NSN 6135-00-938-1351
NSN 5835-00-217-2147
NSN 2925-01-269-3861
NSN 5910-00-893-3070
NSN 5855-00-149-0766
NSN 5855-01-318-7663
NSN 5905-00-198-3702