Red filter
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 4140-00-005-4574
NSN 6645-01-620-0044
NSN 4140-01-570-6685
NSN 5915-00-003-8660
NSN 6135-01-148-8531
NSN 6650-00-152-2916
NSN 7035-00-076-4097
NSN 5935-01-433-2291
NSN 6130-01-595-3550
NSN 6610-01-168-7943
NSN 5950-00-489-2900
NSN 5965-00-492-9642