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 5975-01-116-0285
NSN 6130-00-244-1406
NSN 6240-01-449-1387
NSN 6105-01-037-5823
NSN 5930-01-565-0034
NSN 6645-01-491-5553
NSN 5999-00-528-2263
NSN 6610-01-512-2025
NSN 6320-01-600-5808
NSN 6650-00-788-1461
NSN 5960-01-624-1170
NSN 6320-01-054-3046