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 5990-01-606-9305
NSN 6150-01-380-7627
NSN 5855-00-494-9581
NSN 5855-00-337-3679
NSN 6650-00-197-7563
NSN 5990-01-462-1617
NSN 5996-01-604-6016
NSN 5985-01-227-2220
NSN 6105-01-602-5769
NSN 5950-01-397-9885
NSN 5930-01-418-7186
NSN 5965-01-333-8560