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 5950-01-372-6348
NSN 5935-00-328-0405
NSN 6620-01-364-0195
NSN 5996-01-445-5528
NSN 5920-01-570-0553
NSN 5920-00-405-1363
NSN 6135-01-236-8603
NSN 6135-01-437-6409
NSN 5925-01-137-0159
NSN 6645-00-296-8310
NSN 5895-01-048-5131
NSN 6320-01-098-2503