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 5920-01-526-7220
NSN 5930-00-318-5892
NSN 5905-01-210-1140
NSN 6220-01-643-4821
NSN 5945-01-025-3183
NSN 5895-01-152-1947
NSN 5975-00-185-5243
NSN 5960-01-383-6262
NSN 6150-00-966-9168
NSN 5990-00-067-1622
NSN 5975-00-424-3403
NSN 7035-00-946-2642