Color light neutral
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 5990-01-254-3197
NSN 6240-00-193-8573
NSN 5925-01-352-6727
NSN 5945-01-157-9486
NSN 6220-01-169-6478
NSN 5999-00-480-2564
NSN 5996-01-319-8876
NSN 6130-00-607-6069
NSN 6105-01-114-8644
NSN 5999-01-029-6103
NSN 6320-01-243-2276
NSN 4140-01-168-8796