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 5895-00-133-9447
NSN 6240-01-623-0237
NSN 5915-01-236-6734
NSN 6220-01-418-7776
NSN 5965-01-462-4079
NSN 5905-01-160-9273
NSN 5905-00-393-2757
NSN 4140-01-152-4199
NSN 6650-01-473-7723
NSN 5930-00-214-5562
NSN 5985-01-115-5428
NSN 5905-01-525-9803