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 5965-01-273-3055
NSN 5998-01-100-4695
NSN 6610-01-085-6947
NSN 5915-01-518-5874
NSN 5855-01-130-1501
NSN 5998-01-170-4872
NSN 6610-00-809-0978
NSN 6105-01-371-4621
NSN 6620-00-441-5252
NSN 6610-00-042-8461
NSN 6610-01-415-5877
NSN 5960-00-091-8729