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 6145-01-513-6352
NSN 6110-01-222-9716
NSN 4140-00-794-2960
NSN 5985-01-100-4498
NSN 5975-01-124-3698
NSN 6105-01-249-1481
NSN 5920-00-808-8342
NSN 5996-00-067-8864
NSN 6610-00-562-9174
NSN 7035-01-374-0005
NSN 6220-01-049-2847
NSN 5996-00-456-0895