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 6610-01-512-8154
NSN 5965-01-162-8689
NSN 5930-01-581-0531
NSN 6145-01-231-7641
NSN 5930-00-343-6685
NSN 5990-00-548-6163
NSN 5999-01-346-9816
NSN 5990-00-791-4064
NSN 7035-01-325-7658
NSN 6130-01-411-5103
NSN 5985-00-867-5526
NSN 6145-01-132-1165