A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 6150-00-278-7070
NSN 6645-01-324-5621
NSN 5950-01-035-6836
NSN 6320-00-098-2858
NSN 5996-00-501-4326
NSN 5985-01-590-7773
NSN 5999-00-834-4944
NSN 5996-00-072-9944
NSN 5950-01-048-7660
NSN 6240-01-441-0784
NSN 5915-00-467-6796
NSN 5950-01-050-9114