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 5920-01-578-7055
NSN 5895-00-914-6636
NSN 5935-00-270-1271
NSN 5999-00-716-6066
NSN 5975-01-491-7201
NSN 7035-01-534-4459
NSN 6135-01-300-8455
NSN 5960-01-254-3541
NSN 5965-00-226-0209
NSN 5990-01-328-8225
NSN 6645-01-473-3752
NSN 5965-01-392-6511