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.
NSN 6150-01-222-2186
NSN 5985-01-248-9253
NSN 5935-01-118-4372
NSN 5895-00-025-3748
NSN 5835-01-026-0670
NSN 6620-01-108-5824
NSN 5910-00-847-2473
NSN 5925-00-473-2622
NSN 5985-00-072-7026
NSN 5998-01-431-0971
NSN 5895-00-195-7714
NSN 5835-01-216-7289