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 5990-01-417-4402
NSN 6320-00-284-1524
NSN 6620-01-499-7705
NSN 4140-00-272-6538
NSN 6610-01-184-9700
NSN 5920-01-290-3771
NSN 5905-00-453-0568
NSN 5990-00-253-4323
NSN 6240-01-364-8696
NSN 6135-01-501-4632
NSN 5910-01-201-1863
NSN 2925-00-583-9669