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 5895-00-170-4568
NSN 6620-01-182-6076
NSN 5835-01-158-6878
NSN 6650-01-579-7240
NSN 5998-00-960-2156
NSN 5965-00-841-7530
NSN 6130-01-130-8051
NSN 6135-00-635-9187
NSN 6150-01-392-1194
NSN 5915-01-393-8841
NSN 6610-01-205-8340
NSN 6685-01-236-0339