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 5945-01-297-4165
NSN 5905-00-878-4027
NSN 5999-00-063-8248
NSN 6110-00-350-6192
NSN 6650-00-815-1579
NSN 7035-01-145-5059
NSN 5930-01-502-1048
NSN 5855-01-604-0801
NSN 6320-01-592-6248
NSN 6610-01-283-8888
NSN 6620-00-893-1303
NSN 6150-01-386-6374