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 7035-01-426-4133
NSN 5935-01-634-0668
NSN 6240-00-183-0570
NSN 6645-00-443-8011
NSN 6150-01-115-8426
NSN 5960-01-238-7367
NSN 6145-00-736-8338
NSN 5998-01-543-8455
NSN 5996-01-406-2845
NSN 6610-01-057-7474
NSN 5920-00-103-4494
NSN 5905-00-339-3761