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 5950-01-536-9618
NSN 6320-01-094-2634
NSN 4140-00-894-0539
NSN 6110-00-837-7587
NSN 5975-01-220-1992
NSN 7035-01-328-7448
NSN 7035-01-037-1744
NSN 5998-00-093-6595
NSN 4140-00-420-0251
NSN 5855-01-437-6161
NSN 6105-01-564-5316
NSN 6135-01-618-2199