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 6150-01-198-3024
NSN 6110-01-322-4659
NSN 5905-01-072-9486
NSN 6150-00-481-0675
NSN 6610-01-580-1887
NSN 5905-00-785-3359
NSN 6645-01-023-8020
NSN 5935-00-379-4756
NSN 5855-01-570-3195
NSN 5998-00-974-8967
NSN 5998-00-965-9156
NSN 2925-01-391-1540