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 6620-00-193-0518
NSN 5960-00-266-6741
NSN 5998-01-338-3792
NSN 5985-01-462-1845
NSN 6130-01-139-3701
NSN 6130-01-522-9130
NSN 5965-01-444-1322
NSN 6610-00-450-4875
NSN 4140-00-648-3303
NSN 5935-01-385-3295
NSN 5960-01-014-8073
NSN 6130-01-090-0631