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 5996-01-077-2231
NSN 5855-00-928-1912
NSN 5999-01-082-1878
NSN 5975-01-654-1230
NSN 5915-01-459-3210
NSN 5920-01-149-9738
NSN 5930-00-286-4669
NSN 6130-00-922-2829
NSN 5990-00-320-2779
NSN 6110-01-542-5564
NSN 5910-00-784-6038
NSN 5945-00-168-2801