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 6620-00-010-8190
NSN 5935-01-612-9947
NSN 7035-01-158-7673
NSN 5950-01-361-8109
NSN 6620-01-531-3250
NSN 5920-00-081-0230
NSN 5999-01-606-1651
NSN 5999-01-514-0453
NSN 5975-01-364-8210
NSN 5930-00-369-7542
NSN 6130-01-606-9717
NSN 5975-00-636-0081