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 6685-01-546-3287
NSN 6135-01-313-1948
NSN 5999-01-271-4258
NSN 5855-01-502-6414
NSN 5930-00-157-4559
NSN 5935-01-316-3951
NSN 5855-01-284-7208
NSN 6610-01-383-6982
NSN 5910-00-771-6811
NSN 6685-01-028-5168
NSN 6320-01-607-0347
NSN 6135-01-418-4156