An item consisting of a cell, optical element in which is secured one or more optical elements, such as lenses, reticles, filters, windows, and the like. May include retaining rings, spacers, and/or separators. For items with focusing facilities and/or a diopter scale, see eyepiece assembly, optical instrument.
Classification: Military equipments not identified by kind
NSN 4140-01-549-6521
NSN 5996-01-580-4604
NSN 5835-01-351-3425
NSN 6645-01-369-4371
NSN 5895-00-597-8725
NSN 6650-00-826-7396
NSN 5925-01-495-2948
NSN 5996-01-438-0323
NSN 6150-00-372-5979
NSN 6145-01-575-1270
NSN 5835-01-029-0205
NSN 6145-01-146-7407