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 6650-00-153-3155
NSN 5960-01-305-5449
NSN 6110-00-624-7172
NSN 5950-01-185-3212
NSN 6685-01-365-1408
NSN 5935-01-345-3794
NSN 4140-00-193-8879
NSN 5835-01-476-8210
NSN 6685-00-361-1798
NSN 6685-01-432-5193
NSN 5855-01-606-8278
NSN 5998-01-646-1051