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 6110-01-085-5172
NSN 6220-01-513-7256
NSN 6650-00-168-1502
NSN 5935-00-648-3298
NSN 6145-00-278-0697
NSN 5855-01-569-4057
NSN 5930-00-202-1078
NSN 6685-00-411-2367
NSN 6220-01-258-1283
NSN 6110-00-107-1664
NSN 6135-01-513-3581
NSN 5855-01-092-7755