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 5935-01-515-6350
NSN 6150-00-389-6771
NSN 6135-01-366-9633
NSN 6110-01-243-2989
NSN 6645-01-490-0325
NSN 5999-01-641-5018
NSN 5835-01-466-5496
NSN 5835-01-238-3381
NSN 5835-01-152-9483
NSN 7035-01-445-3563
NSN 5905-01-555-8077
NSN 5996-01-610-6641