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 5915-01-309-0038
NSN 6620-00-189-0967
NSN 6135-01-615-6205
NSN 5905-00-781-7026
NSN 5930-01-246-3704
NSN 6130-01-561-8859
NSN 6145-01-207-0445
NSN 5945-01-580-2128
NSN 7035-01-607-3856
NSN 7035-01-382-4413
NSN 5930-01-449-9650
NSN 5905-01-203-4754