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 5905-01-528-1978
NSN 6620-01-449-3101
NSN 5905-00-267-9551
NSN 5855-01-335-8907
NSN 6645-01-224-0101
NSN 6220-01-496-2032
NSN 5950-00-004-7738
NSN 5835-01-442-6079
NSN 5835-01-200-7153
NSN 6145-00-810-7585
NSN 6650-01-591-5057
NSN 6105-00-084-3055