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 5920-00-092-0712
NSN 5895-01-352-5695
NSN 6110-01-090-0804
NSN 6685-01-472-2413
NSN 5925-01-157-2209
NSN 6240-01-579-1628
NSN 6320-01-243-2276
NSN 6220-00-500-3198
NSN 5985-01-141-1760
NSN 6220-01-285-2269
NSN 6610-01-059-2734
NSN 5835-00-617-3578