Color red
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 5950-01-072-1825
NSN 5996-00-202-6576
NSN 5930-00-930-8384
NSN 6620-00-736-8457
NSN 6135-00-913-2062
NSN 6645-01-552-0004
NSN 6610-01-417-3011
NSN 6135-01-529-8523
NSN 5910-00-637-2609
NSN 5925-01-571-7883
NSN 5999-01-463-9039
NSN 5985-00-113-4605