Color clear
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 5985-01-040-9527
NSN 5960-01-300-3181
NSN 2925-01-415-2140
NSN 6150-01-260-6237
NSN 5965-01-432-7134
NSN 5925-01-472-6031
NSN 6150-01-167-2262
NSN 6620-00-383-8740
NSN 6320-01-119-3935
NSN 5975-01-334-1378
NSN 5945-01-369-0883
NSN 5990-00-775-2637