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 5985-01-420-7566
NSN 5975-00-149-0758
NSN 6240-01-129-4870
NSN 5990-01-211-6136
NSN 5975-01-227-5543
NSN 6145-01-026-3379
NSN 6105-01-568-0763
NSN 5996-01-533-2428
NSN 5945-01-044-3779
NSN 5960-01-342-9965
NSN 5975-01-616-3673
NSN 6220-00-557-8861