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 2925-00-925-0545
NSN 6130-01-226-5338
NSN 6240-01-649-2988
NSN 6145-01-011-3231
NSN 6645-01-583-8153
NSN 5960-00-657-7823
NSN 5965-01-561-7560
NSN 5930-00-892-1668
NSN 5930-00-516-1217
NSN 6135-00-134-6648
NSN 6620-01-543-5491
NSN 6645-01-196-8616