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 6130-01-629-5485
NSN 6650-01-411-6292
NSN 5990-00-332-9426
NSN 5910-01-456-9541
NSN 6150-01-323-4700
NSN 6645-01-299-3198
NSN 5930-01-634-0659
NSN 5925-00-236-9000
NSN 5950-01-434-1707
NSN 5975-01-357-8122
NSN 6105-01-382-0591
NSN 6610-00-814-0574