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 5915-00-842-4183
NSN 6685-00-847-8714
NSN 4140-01-307-1405
NSN 6135-01-479-9783
NSN 6610-01-519-0997
NSN 5960-01-624-1170
NSN 6240-01-297-8656
NSN 5930-01-327-3744
NSN 5855-01-423-5839
NSN 6240-01-387-0904
NSN 6620-00-262-3113
NSN 5910-01-516-5832