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 6610-00-224-4252
NSN 5915-00-933-1787
NSN 5950-00-671-3165
NSN 5895-00-611-8109
NSN 5945-01-077-5342
NSN 6220-00-595-6954
NSN 5965-01-437-5934
NSN 5960-01-632-6576
NSN 5945-00-597-5722
NSN 4140-01-658-8108
NSN 5965-00-296-9994
NSN 5835-01-332-2867