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 6320-00-284-1524
NSN 5975-01-034-8983
NSN 6320-01-039-5891
NSN 5835-01-519-3834
NSN 6110-01-246-4642
NSN 5920-01-009-1307
NSN 5990-00-366-0112
NSN 4140-01-507-8055
NSN 6610-00-195-7517
NSN 5855-00-885-8452
NSN 6620-00-473-3692
NSN 5835-00-170-5238