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 6620-01-352-5640
NSN 5920-01-106-1137
NSN 5965-00-630-5416
NSN 5950-01-181-6799
NSN 6145-01-063-6486
NSN 5905-01-204-0415
NSN 5910-00-221-2016
NSN 4140-01-390-4104
NSN 6135-01-395-2388
NSN 5925-00-644-5546
NSN 5930-00-815-9112
NSN 6610-01-431-0735