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 5895-01-068-6913
NSN 5935-01-438-4909
NSN 6620-00-286-5721
NSN 6610-01-429-2162
NSN 6650-00-170-5095
NSN 5996-00-551-7919
NSN 6610-01-248-4339
NSN 6320-01-607-1491
NSN 5965-01-408-5990
NSN 6145-01-220-9149
NSN 5950-01-582-2243
NSN 5965-00-194-9875