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 5915-00-497-5834
NSN 5915-01-077-2679
NSN 5920-00-934-3350
NSN 6645-01-097-5831
NSN 6320-01-449-1014
NSN 5910-01-492-6889
NSN 6685-00-967-3636
NSN 6650-01-633-9147
NSN 5999-01-612-4722
NSN 5835-00-124-9995
NSN 6685-01-310-8116
NSN 5895-01-058-6315