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 5965-01-437-8442
NSN 6130-01-569-3746
NSN 6110-01-169-2301
NSN 5920-01-310-6027
NSN 5925-01-103-7015
NSN 6650-00-950-4107
NSN 6150-01-062-6546
NSN 6240-01-502-7103
NSN 6685-00-796-5664
NSN 6220-01-454-6767
NSN 5950-01-270-8023
NSN 2925-01-355-5280