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 5965-00-994-3190
NSN 6610-01-207-0045
NSN 5999-01-053-6081
NSN 5999-01-069-3877
NSN 5960-01-570-8605
NSN 6105-01-443-1429
NSN 5996-01-432-0117
NSN 6110-01-604-8660
NSN 5835-01-506-0746
NSN 5920-01-515-4191
NSN 5915-01-147-4493
NSN 6145-00-278-0697