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 6610-01-092-1322
NSN 6650-01-039-2858
NSN 6650-01-347-9651
NSN 5930-00-975-2100
NSN 5998-01-011-1360
NSN 4140-00-547-8918
NSN 5915-01-472-2089
NSN 7035-00-919-3381
NSN 5925-01-298-7163
NSN 5960-01-593-1936
NSN 5950-00-675-1338
NSN 5895-01-090-0567