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 6240-01-477-1262
NSN 6105-00-845-6986
NSN 5985-00-978-9635
NSN 5910-01-574-7359
NSN 5910-00-838-5536
NSN 5915-01-597-9432
NSN 5935-01-139-1506
NSN 6240-01-568-6745
NSN 6650-01-243-5291
NSN 5910-00-574-3793
NSN 6610-01-282-3225
NSN 6130-01-415-2870