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 7035-01-462-5766
NSN 5905-01-388-4328
NSN 6685-00-754-7495
NSN 5925-01-120-8756
NSN 5835-00-804-0569
NSN 6610-00-191-5317
NSN 5998-01-393-2119
NSN 5935-01-460-5604
NSN 5915-00-278-5561
NSN 5925-00-493-9154
NSN 5998-01-319-4314
NSN 6610-00-548-3452