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 5910-01-197-8108
NSN 5999-00-509-1076
NSN 6240-01-099-8826
NSN 6610-01-075-2773
NSN 6105-01-476-3844
NSN 6320-00-809-5744
NSN 4140-00-829-4134
NSN 5996-01-303-8361
NSN 5905-01-546-5821
NSN 5965-01-569-3332
NSN 5999-00-282-3150
NSN 5835-00-946-2656