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 5999-01-609-8609
NSN 5985-01-378-1551
NSN 6610-01-429-7267
NSN 6610-01-555-8596
NSN 5925-00-882-6676
NSN 2925-01-088-3612
NSN 6685-00-065-7084
NSN 5935-01-629-9121
NSN 5985-01-634-0321
NSN 5895-01-462-1377
NSN 5910-01-240-0402
NSN 5930-01-177-7481