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 6135-01-579-8864
NSN 7035-01-099-2311
NSN 2925-01-439-0219
NSN 5835-00-140-0727
NSN 5998-01-026-2772
NSN 5998-01-256-8765
NSN 5985-01-237-5441
NSN 5990-01-472-2447
NSN 5915-00-350-3430
NSN 6150-01-012-3107
NSN 5985-00-101-0698
NSN 5999-01-290-8531