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 5950-01-206-9443
NSN 5905-01-133-0536
NSN 7035-01-435-7962
NSN 5945-01-131-2451
NSN 6620-01-580-0883
NSN 5990-01-517-1909
NSN 5910-01-567-2953
NSN 5999-01-386-6979
NSN 2925-01-574-7119
NSN 6135-01-645-4653
NSN 6220-01-239-1391
NSN 5910-01-353-6121