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 6145-00-275-4046
NSN 6150-00-606-8920
NSN 5975-01-518-1062
NSN 6150-01-237-2491
NSN 5855-01-078-4180
NSN 5935-00-375-1606
NSN 6145-01-354-8806
NSN 5835-01-187-8986
NSN 5920-01-272-1354
NSN 4140-00-580-8508
NSN 4140-01-212-1433
NSN 6105-01-532-2241