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 5925-00-071-2619
NSN 6320-01-504-3948
NSN 5999-01-110-6838
NSN 5925-01-392-1242
NSN 2925-00-198-8547
NSN 5895-00-964-8989
NSN 7035-01-145-5059
NSN 6610-01-445-1036
NSN 5910-00-770-1571
NSN 6240-00-809-8510
NSN 6320-01-308-9392
NSN 5985-01-421-9662