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 6620-01-449-6927
NSN 5999-01-577-3227
NSN 2925-00-233-5644
NSN 6240-01-556-7096
NSN 6610-00-870-7714
NSN 6610-00-451-1155
NSN 5996-00-707-6228
NSN 5855-01-054-9014
NSN 6620-01-381-6225
NSN 5950-00-518-3936
NSN 5950-01-061-5899
NSN 6135-00-686-4777