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 5999-01-450-5489
NSN 5920-00-206-3595
NSN 6610-01-182-9828
NSN 5998-01-508-4501
NSN 5905-01-243-4006
NSN 5965-01-311-1376
NSN 6105-00-665-8581
NSN 6135-01-231-4809
NSN 6645-01-549-0935
NSN 5985-00-595-8633
NSN 6105-00-527-7702
NSN 5999-01-250-8928