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 6610-01-243-8506
NSN 6145-01-564-9800
NSN 5920-00-738-8074
NSN 6105-00-186-9380
NSN 6105-00-165-4236
NSN 6685-01-183-4181
NSN 6240-00-017-9006
NSN 6105-01-554-4091
NSN 6620-01-416-1757
NSN 6320-01-170-4068
NSN 6105-01-400-1315
NSN 6610-01-052-0396