A light filter which reduces the intensity of the light without changing the relative spectral distribution of the energy.
NSN 6620-00-801-4674
NSN 6685-01-540-8550
NSN 5915-01-370-3505
NSN 5925-00-159-7622
NSN 5998-01-590-5563
NSN 6150-01-400-4211
NSN 6685-01-587-5948
NSN 5925-00-081-9135
NSN 4140-01-263-2180
NSN 6130-01-433-0672
NSN 4140-01-464-2499
NSN 6130-01-121-5929