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 5930-01-576-9993
NSN 7035-01-183-1989
NSN 2925-00-973-9413
NSN 5996-00-665-2869
NSN 6610-00-450-2575
NSN 5985-00-355-7611
NSN 5910-00-476-0591
NSN 2925-01-182-9924
NSN 5935-01-512-3371
NSN 7035-00-465-3298
NSN 5915-01-541-2031
NSN 5985-00-284-7604