Heat treated
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 6610-00-275-8555
NSN 6130-01-212-7092
NSN 5990-01-442-3520
NSN 5920-01-394-1671
NSN 5935-00-004-6257
NSN 5960-00-681-8201
NSN 5930-00-224-6699
NSN 5990-01-574-2522
NSN 5920-01-236-6780
NSN 6685-00-450-7947
NSN 6135-01-041-3829
NSN 5999-00-705-9167