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 6685-00-825-4360
NSN 5930-01-162-8372
NSN 5835-01-045-6371
NSN 5990-01-182-5913
NSN 6105-00-469-7540
NSN 6650-01-255-4046
NSN 5945-00-529-0409
NSN 5990-01-110-8979
NSN 5855-00-004-0904
NSN 6610-01-555-8791
NSN 6610-01-003-9763
NSN 5996-01-658-4658