Glass mil-f21241, type 1, color yellow, grade a
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 5905-00-030-9964
NSN 6610-00-336-2404
NSN 5985-01-348-8760
NSN 5920-01-200-6274
NSN 5920-01-352-0880
NSN 5935-01-228-1827
NSN 5930-01-466-5242
NSN 5895-00-706-9451
NSN 5985-01-147-5238
NSN 6145-01-161-7392
NSN 4140-01-605-1706
NSN 5975-00-235-0183