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 5925-00-419-1950
NSN 6645-01-024-5261
NSN 4140-00-528-2921
NSN 5905-01-554-7350
NSN 6110-00-139-5693
NSN 5975-01-241-6393
NSN 6320-00-845-3261
NSN 5895-01-589-9679
NSN 5975-01-336-4353
NSN 5835-00-450-6763
NSN 5905-00-311-8573
NSN 4140-00-283-6843