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 6645-01-016-7706
NSN 6240-01-048-8172
NSN 6320-01-575-6342
NSN 6320-01-516-3836
NSN 5990-00-832-9766
NSN 5945-00-563-1653
NSN 6620-00-509-7935
NSN 5935-00-957-9208
NSN 6320-00-456-0836
NSN 6320-01-411-6610
NSN 5960-00-266-6741
NSN 6110-01-592-4551