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 5925-01-435-4409
NSN 6145-00-681-1585
NSN 5835-01-242-9806
NSN 6105-01-319-3984
NSN 6610-00-557-0900
NSN 6685-01-020-8756
NSN 5895-00-147-4101
NSN 5950-00-910-0025
NSN 5985-00-828-0615
NSN 2925-01-177-1598
NSN 6320-01-125-3361
NSN 5975-01-485-5749