Dark neutral color
An item having two plane-parallel surfaces and used in the telescopic system of an optical instrument to modify the density or spectral intensity of light by absorption. Several filters having varied characteristics are usually mounted in such a manner that any selected filter may be moved in or out of the optical axis as light conditions warrant. Excludes window, optical instrument.
Classification: Military equipments not identified by kind
NSN 5960-00-872-0531
NSN 5996-01-117-0338
NSN 6130-00-369-6637
NSN 5960-01-241-9078
NSN 5990-00-054-4785
NSN 5996-01-444-4547
NSN 6145-00-422-2644
NSN 5965-01-150-1920
NSN 7035-01-406-6510
NSN 5915-01-407-1061
NSN 6105-00-659-3890
NSN 5950-00-779-3424