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 6320-01-177-3192
NSN 5910-01-417-3160
NSN 5930-00-661-2280
NSN 5998-01-071-9705
NSN 6620-00-416-4131
NSN 4140-01-451-7042
NSN 5996-00-611-1263
NSN 7035-00-131-8219
NSN 6620-01-100-3181
NSN 5930-01-660-5060
NSN 6110-01-298-4664
NSN 5910-01-412-9215