Glass must be of optical grade
An item consisting of a light filter specifically designed for use with an oscilloscope, indicator or other item having a cathode ray tube. May include mounting facilities such as a ring and/or other hardware, but must consist of only one filter. For items having graduations or scales, see scale, cathode ray tube. See also filter assembly, light, cathode ray tube.
Classification: Military equipments not identified by kind
NSN 6220-00-847-8347
NSN 5999-00-283-3754
NSN 6645-01-556-1441
NSN 5996-01-041-7555
NSN 5910-01-258-2123
NSN 6320-01-202-8761
NSN 5945-01-322-9079
NSN 5945-01-340-4972
NSN 5999-01-170-8151
NSN 5960-01-226-0342
NSN 6220-00-179-2653
NSN 5935-01-443-2429