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 6650-01-341-9838
NSN 5905-01-649-7934
NSN 6240-00-157-3724
NSN 5905-01-186-0625
NSN 5998-00-087-4776
NSN 5925-00-961-1202
NSN 5930-00-059-7398
NSN 5835-01-432-6185
NSN 5915-00-253-5142
NSN 6130-01-357-1556
NSN 5855-01-353-3958
NSN 6645-00-353-6659