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 5895-00-225-9589
NSN 5950-01-183-6449
NSN 5910-01-647-5666
NSN 5920-01-140-1120
NSN 6135-00-575-8942
NSN 6145-01-578-8782
NSN 6610-00-451-1155
NSN 5950-01-308-2778
NSN 5925-00-553-2407
NSN 5855-01-042-7990
NSN 6685-00-392-0940
NSN 6150-01-464-9790