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 6150-00-862-3247
NSN 6240-01-019-8068
NSN 2925-00-149-0760
NSN 5990-00-258-0228
NSN 5965-00-089-8308
NSN 5975-01-526-5882
NSN 6620-00-708-1417
NSN 5910-01-307-6246
NSN 5945-01-150-0235
NSN 6685-00-934-8676
NSN 5965-01-304-3638
NSN 4140-01-598-7578