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 5835-01-387-4227
NSN 5960-01-371-5494
NSN 6620-00-351-9949
NSN 5895-00-816-9763
NSN 6620-00-049-6425
NSN 5945-01-187-0701
NSN 6130-00-448-2911
NSN 5910-01-193-5464
NSN 5996-01-603-0360
NSN 6620-01-242-9247
NSN 5990-00-328-4490
NSN 5990-00-405-5182