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 5990-01-560-0896
NSN 5910-01-101-4734
NSN 6220-01-502-9451
NSN 6685-00-966-4446
NSN 5950-01-199-5342
NSN 6110-01-044-7884
NSN 5915-01-052-7681
NSN 6150-01-524-9704
NSN 5985-01-251-2222
NSN 5920-01-020-7659
NSN 6145-00-444-6770
NSN 6220-00-081-6429