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 5930-00-223-9365
NSN 5905-00-926-2881
NSN 6685-00-608-3295
NSN 5960-00-404-8547
NSN 6150-00-259-4632
NSN 7035-00-148-2300
NSN 5990-00-067-6791
NSN 6220-01-528-8931
NSN 5965-01-419-6624
NSN 5920-01-433-2261
NSN 7035-01-386-5722
NSN 6685-01-467-2493