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 5925-01-050-9032
NSN 5855-00-198-3197
NSN 6135-01-322-4655
NSN 5920-01-396-9278
NSN 6620-00-280-2874
NSN 5985-01-533-1081
NSN 7035-00-794-0792
NSN 5905-00-257-0121
NSN 6105-01-554-7274
NSN 6220-01-077-6886
NSN 5910-01-419-3684
NSN 5998-00-010-8568