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 5920-01-401-5315
NSN 6650-00-170-5095
NSN 5915-00-814-8342
NSN 5920-00-584-4592
NSN 6110-01-037-4863
NSN 6685-00-661-2347
NSN 6610-00-184-0833
NSN 6240-01-500-3024
NSN 5960-00-725-6850
NSN 6685-00-230-4267
NSN 5985-01-554-2997
NSN 5905-01-121-6581