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 5996-01-458-8143
NSN 5895-01-652-4149
NSN 5965-01-100-2591
NSN 6110-00-183-7788
NSN 6105-01-357-6320
NSN 6150-01-514-7370
NSN 5985-01-327-1621
NSN 5996-01-435-1931
NSN 5920-01-299-7263
NSN 6685-01-548-0867
NSN 5905-00-128-6281
NSN 6610-00-126-3021