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 6320-00-483-0451
NSN 6150-00-111-0881
NSN 6610-01-186-4106
NSN 2925-01-157-9204
NSN 7035-01-204-7481
NSN 5930-01-472-8078
NSN 5905-01-012-1598
NSN 5915-00-323-1262
NSN 5945-00-322-2114
NSN 4140-00-733-7936
NSN 6620-00-992-5876
NSN 5930-01-009-0231