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 6685-00-968-6120
NSN 5965-01-482-0235
NSN 5996-01-191-8758
NSN 5985-00-624-4139
NSN 5915-01-509-1941
NSN 5905-01-400-1986
NSN 5920-00-436-0780
NSN 6240-00-646-6931
NSN 5915-01-399-7278
NSN 6620-01-106-6359
NSN 6220-00-258-2967
NSN 6610-01-026-1701