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 6650-00-922-3328
NSN 5855-00-361-0167
NSN 5935-01-026-0417
NSN 4140-01-521-4577
NSN 5975-00-117-9515
NSN 5910-00-248-6899
NSN 5950-01-033-2133
NSN 6610-01-111-6418
NSN 6105-01-629-2296
NSN 5925-01-238-5711
NSN 5915-01-412-8667
NSN 2925-01-422-1542