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 6685-01-252-9470
NSN 6145-01-384-6003
NSN 5998-00-879-2164
NSN 6220-01-378-4501
NSN 6650-00-304-6987
NSN 5905-01-023-8573
NSN 5975-01-484-6641
NSN 5935-01-391-4980
NSN 5930-01-600-0260
NSN 5945-01-640-7097
NSN 6645-01-136-7403
NSN 5930-00-599-7898