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 6650-01-115-7981
NSN 5945-00-105-0084
NSN 5915-01-575-9508
NSN 5985-01-421-0760
NSN 5985-01-528-8001
NSN 5960-01-203-3619
NSN 6650-01-490-1882
NSN 5960-00-071-4602
NSN 5835-00-231-9219
NSN 5910-01-054-3727
NSN 5895-01-236-4979
NSN 6610-01-055-4147