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 5905-00-064-9350
NSN 7035-00-171-0804
NSN 4140-00-776-8237
NSN 5835-00-065-6757
NSN 5998-01-107-1119
NSN 6110-01-364-8880
NSN 6320-00-164-4087
NSN 5895-01-502-7282
NSN 6650-01-537-2624
NSN 6150-00-737-2400
NSN 5990-00-033-8128
NSN 6145-01-084-5464