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 5920-00-162-2218
NSN 5905-01-370-6327
NSN 6610-01-550-6295
NSN 6220-01-106-3215
NSN 6110-00-820-1660
NSN 5930-01-400-6126
NSN 5935-00-874-0987
NSN 5960-01-308-2474
NSN 5998-01-361-9838
NSN 5990-01-411-8548
NSN 5945-01-310-9310
NSN 5990-01-076-6858