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 6105-01-411-5970
NSN 6685-01-541-2140
NSN 5905-00-137-9960
NSN 5915-00-209-9110
NSN 5960-00-759-2534
NSN 6650-01-168-8451
NSN 5960-00-174-1867
NSN 6130-01-193-8992
NSN 6610-00-118-2436
NSN 5960-01-487-6436
NSN 5835-00-523-0736
NSN 5915-00-990-4615