A light filter which reduces the intensity of the light without changing the relative spectral distribution of the energy.
NSN 6110-01-431-4257
NSN 2925-01-633-4048
NSN 5975-00-552-1764
NSN 5975-00-489-6195
NSN 6650-01-197-4585
NSN 6650-01-570-0430
NSN 5990-01-065-0492
NSN 5835-01-324-8739
NSN 5960-01-462-1864
NSN 5999-01-452-1038
NSN 5950-00-850-0863
NSN 4140-01-098-8706