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 5999-01-247-9492
NSN 5855-01-163-8152
NSN 5855-01-464-3152
NSN 5998-00-038-8334
NSN 6145-00-261-8202
NSN 5960-01-178-7500
NSN 6610-01-044-4740
NSN 5985-00-303-8092
NSN 5920-01-447-4265
NSN 6105-00-629-7438
NSN 5935-00-972-9614
NSN 5960-01-398-9538