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 5935-01-100-2081
NSN 6685-01-645-0890
NSN 5930-01-366-0058
NSN 6320-00-149-7570
NSN 5835-01-320-8306
NSN 6620-01-318-4408
NSN 5996-00-189-2322
NSN 6620-01-548-2693
NSN 5915-01-149-4834
NSN 6620-01-200-6493
NSN 5985-00-650-0504
NSN 6610-01-113-2726