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 6145-01-484-6698
NSN 5999-01-611-9500
NSN 5895-01-157-8795
NSN 6685-01-227-5471
NSN 5905-01-492-2626
NSN 6610-01-206-3921
NSN 5915-01-153-0121
NSN 6650-01-135-3127
NSN 5998-01-601-5133
NSN 6130-01-406-4617
NSN 5996-01-575-5349
NSN 6110-01-386-1536