Color dark 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 5950-01-446-2984
NSN 6220-01-582-8167
NSN 6650-01-014-5990
NSN 5905-01-507-7325
NSN 5905-01-227-4601
NSN 6645-01-375-9702
NSN 6150-01-160-0391
NSN 4140-01-051-7583
NSN 6220-01-212-8802
NSN 6150-00-854-2607
NSN 5925-01-646-3988
NSN 5855-01-580-0645