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 6135-01-353-3802
NSN 5930-01-202-9770
NSN 6645-01-347-0450
NSN 6135-01-193-8154
NSN 6645-01-325-5605
NSN 5950-01-103-7800
NSN 5935-00-851-5112
NSN 5985-00-529-0093
NSN 6685-00-286-8481
NSN 4140-01-025-8487
NSN 5835-01-416-6455
NSN 6130-00-401-2291