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 5945-01-572-9426
NSN 5835-01-535-8470
NSN 5996-01-047-5953
NSN 6645-01-348-8146
NSN 6135-01-446-6010
NSN 5965-00-775-6496
NSN 6645-01-400-2119
NSN 6110-01-274-8039
NSN 4140-01-215-1125
NSN 5835-01-174-7700
NSN 5855-00-548-4742
NSN 6220-01-447-7841