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 5945-00-114-1882
NSN 5835-00-891-2232
NSN 5945-01-065-2854
NSN 5996-00-061-0336
NSN 5905-01-192-9101
NSN 6135-00-471-5356
NSN 7035-01-232-7263
NSN 5905-01-170-4414
NSN 5950-00-056-0795
NSN 5998-01-159-0539
NSN 6135-00-120-1034
NSN 5935-01-647-0254