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 5895-01-329-8337
NSN 5945-00-432-6669
NSN 6130-00-280-3696
NSN 5945-00-185-4815
NSN 5950-00-057-8171
NSN 5920-01-246-3652
NSN 6150-01-142-8356
NSN 6685-01-069-9177
NSN 5895-01-342-8341
NSN 2925-01-540-7389
NSN 5835-01-502-9228
NSN 5910-01-157-5649