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 6110-01-400-4207
NSN 5920-01-041-1993
NSN 5945-01-585-8129
NSN 6620-01-030-9460
NSN 5855-00-132-1007
NSN 6620-00-720-3278
NSN 6145-01-660-9900
NSN 5950-01-023-2904
NSN 5920-01-420-0912
NSN 6135-00-321-6707
NSN 5965-01-560-6491
NSN 6650-00-986-6495