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 5835-01-510-1873
NSN 5945-00-083-6778
NSN 5965-01-119-1898
NSN 6110-01-571-7840
NSN 5930-00-469-9430
NSN 7035-00-585-2113
NSN 5910-01-307-2346
NSN 5945-00-116-3896
NSN 5930-01-400-0892
NSN 6650-01-364-1313
NSN 5996-01-493-2705
NSN 5935-01-519-6305