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 6320-01-056-1164
NSN 5905-01-206-1181
NSN 6320-00-725-0754
NSN 6240-01-411-6902
NSN 6320-00-593-0379
NSN 5930-01-491-5913
NSN 6620-01-461-3550
NSN 6650-01-514-7809
NSN 6135-01-447-3086
NSN 5996-00-823-4789
NSN 5910-01-085-6199
NSN 7035-00-185-8683