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 5920-01-428-9220
NSN 5999-01-350-3648
NSN 5996-01-145-2784
NSN 5998-00-192-9314
NSN 5996-00-318-3405
NSN 6150-01-089-6764
NSN 5975-01-263-5315
NSN 6110-01-101-6722
NSN 5975-01-126-4755
NSN 5920-01-359-1197
NSN 5998-00-050-0003
NSN 5920-01-337-7646