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 6685-00-491-1101
NSN 5915-01-212-2582
NSN 6105-01-529-5705
NSN 5910-00-133-8596
NSN 5835-00-257-2852
NSN 5990-01-047-4083
NSN 5999-01-158-1562
NSN 5925-00-186-0765
NSN 5895-00-212-7451
NSN 5975-00-527-9656
NSN 6150-01-476-3197
NSN 5990-00-232-3965