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 5835-01-068-4214
NSN 5835-00-405-4560
NSN 5945-01-438-3361
NSN 6650-01-583-8302
NSN 5985-01-411-6502
NSN 6150-01-437-9087
NSN 5910-01-081-7399
NSN 5960-00-188-8619
NSN 6150-00-889-7326
NSN 6320-01-585-8468
NSN 5950-01-634-0677
NSN 6685-01-157-9340