A light filter which reduces the intensity of the light without changing the relative spectral distribution of the energy.
NSN 5998-00-307-1043
NSN 6645-01-651-8871
NSN 5920-01-131-8371
NSN 5935-00-442-2870
NSN 6620-01-342-5953
NSN 6240-01-034-8934
NSN 6620-01-029-3705
NSN 6105-01-645-9402
NSN 5915-01-575-4832
NSN 6150-01-258-5438
NSN 6135-00-738-5571
NSN 6130-01-241-2265