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 6145-01-492-1061
NSN 5965-00-942-1602
NSN 5905-01-188-0025
NSN 7035-01-008-7248
NSN 6110-00-835-4585
NSN 6240-01-047-8988
NSN 5985-01-633-5115
NSN 6610-01-426-5090
NSN 6650-01-035-3041
NSN 6110-01-512-2972
NSN 6645-01-633-1852
NSN 5998-01-003-2604