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 6610-01-513-1903
NSN 6150-00-398-6527
NSN 5915-01-507-8871
NSN 5935-00-137-1028
NSN 6105-00-439-1987
NSN 6645-01-416-9895
NSN 5935-01-429-1262
NSN 5925-00-915-1204
NSN 5920-01-319-4741
NSN 5975-01-354-7446
NSN 5996-01-372-5063
NSN 5835-01-112-4725