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 6220-01-332-4698
NSN 5855-01-162-5251
NSN 5905-01-385-9101
NSN 5920-01-505-7409
NSN 7035-01-484-8037
NSN 5895-00-942-9475
NSN 6110-01-204-3511
NSN 2925-01-106-3552
NSN 6105-01-325-7632
NSN 5998-01-362-0993
NSN 5905-00-737-8560
NSN 5905-01-186-4886