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 5950-01-438-0032
NSN 6110-01-265-3133
NSN 5930-00-455-7801
NSN 5960-00-913-5398
NSN 6685-01-651-7109
NSN 5975-01-085-6979
NSN 6110-01-372-0587
NSN 5975-00-804-1489
NSN 5998-01-263-8779
NSN 6220-01-571-3894
NSN 6110-00-647-3932
NSN 5835-01-192-4165