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 5910-00-453-0532
NSN 5925-01-246-8700
NSN 6110-01-328-8292
NSN 6145-01-019-0773
NSN 5925-01-575-1682
NSN 5950-01-584-9730
NSN 5920-01-296-5461
NSN 6240-01-067-6457
NSN 5930-00-628-5333
NSN 5925-01-317-3869
NSN 6220-00-631-7113
NSN 5965-00-396-3411