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 5965-01-486-1222
NSN 6130-01-532-8974
NSN 5945-01-307-9673
NSN 5950-01-288-3244
NSN 5950-01-029-3613
NSN 5990-01-120-1910
NSN 5930-00-528-9728
NSN 5855-01-594-7809
NSN 2925-01-197-7864
NSN 7035-00-541-8516
NSN 5965-01-323-8134
NSN 4140-01-383-6184