Dark neutral filter
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 6320-00-194-4252
NSN 5835-01-122-9657
NSN 5985-01-576-0468
NSN 5905-01-325-1966
NSN 5935-01-240-7095
NSN 6135-01-611-0125
NSN 6685-01-140-9563
NSN 7035-01-541-8029
NSN 5835-01-093-7809
NSN 6135-01-525-4446
NSN 6105-01-143-5774
NSN 6240-01-622-5155