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 5895-01-605-3311
NSN 5930-00-003-4633
NSN 5835-01-535-0948
NSN 2925-01-345-9439
NSN 5935-01-466-4804
NSN 6240-01-409-1577
NSN 6620-00-193-9503
NSN 6650-01-296-0883
NSN 5950-01-128-3750
NSN 5905-01-153-2512
NSN 6150-01-076-4210
NSN 5915-00-519-6402