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 6685-01-039-0701
NSN 5910-01-194-7897
NSN 5915-00-709-0068
NSN 5910-00-139-6726
NSN 6240-00-729-9696
NSN 5910-01-068-4198
NSN 6240-01-038-6618
NSN 5990-00-831-5359
NSN 5935-00-903-3513
NSN 7035-01-426-4133
NSN 2925-00-914-7627
NSN 5910-01-326-1040