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 5998-01-094-9821
NSN 6150-00-268-3659
NSN 5945-01-565-1706
NSN 6135-01-607-5478
NSN 6135-01-426-8282
NSN 2925-01-100-3694
NSN 6610-00-817-8772
NSN 5910-01-361-8623
NSN 4140-00-456-6139
NSN 5910-01-175-6171
NSN 5925-01-500-5407
NSN 5996-00-373-9001