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 5855-01-042-7990
NSN 6220-01-292-7841
NSN 5915-01-368-1168
NSN 6650-01-030-5545
NSN 5990-01-514-8030
NSN 6610-01-374-6505
NSN 6110-00-494-9135
NSN 5999-00-266-3805
NSN 5960-00-790-0509
NSN 6650-01-372-9250
NSN 6220-01-468-5596
NSN 6130-00-480-1244