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 2925-00-502-3768
NSN 5935-00-993-2314
NSN 5895-00-111-0425
NSN 5855-00-797-8217
NSN 5905-00-358-1512
NSN 5930-01-094-6608
NSN 6620-00-140-8644
NSN 5945-01-377-5085
NSN 5945-01-421-4135
NSN 5895-00-389-3391
NSN 6650-01-037-7637
NSN 7035-00-861-7913