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 5999-01-508-3470
NSN 6645-01-561-7432
NSN 2925-01-387-0870
NSN 5895-01-595-9386
NSN 5915-00-050-1307
NSN 5915-00-862-3151
NSN 5935-01-650-9428
NSN 7035-01-038-9970
NSN 5910-01-278-9009
NSN 5925-00-504-5364
NSN 6320-01-066-1766
NSN 6130-00-808-7842