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 5975-00-538-7957
NSN 5950-00-522-2432
NSN 6645-01-314-2889
NSN 6610-00-711-2551
NSN 5996-01-287-6879
NSN 5975-01-411-6054
NSN 6135-01-067-8331
NSN 5930-00-296-9940
NSN 5905-01-465-7732
NSN 5920-01-415-2878
NSN 6240-01-153-2861
NSN 5998-00-519-6418