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 4140-00-905-6570
NSN 7035-01-123-8723
NSN 5835-01-028-0097
NSN 5835-01-209-6410
NSN 6150-00-984-5362
NSN 5960-00-473-2602
NSN 5999-01-100-5514
NSN 6240-01-644-0908
NSN 5999-00-137-6199
NSN 6320-01-138-0442
NSN 6620-01-012-2852
NSN 6645-00-574-9712