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 5975-00-340-2825
NSN 5905-01-018-7884
NSN 5985-00-800-5438
NSN 5960-00-865-1730
NSN 5996-01-390-8845
NSN 7035-00-500-7839
NSN 5990-00-202-5127
NSN 5960-01-410-8177
NSN 5855-00-014-5008
NSN 6620-01-311-3516
NSN 5985-01-419-6178
NSN 6150-01-255-5507