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 6620-01-345-4835
NSN 2925-00-526-4541
NSN 5895-00-653-4227
NSN 6620-01-299-2245
NSN 5965-01-426-1278
NSN 6150-01-033-4786
NSN 5895-01-535-9921
NSN 6610-01-359-0008
NSN 5920-01-534-1344
NSN 6110-01-406-4818
NSN 5895-00-255-7784
NSN 6150-01-627-2479