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 5835-01-238-3381
NSN 6150-01-145-1360
NSN 5855-01-400-1590
NSN 5945-00-338-1387
NSN 5975-00-447-1053
NSN 6620-01-109-2764
NSN 6620-01-206-3922
NSN 6105-00-350-8546
NSN 5920-00-815-5599
NSN 2925-01-157-9204
NSN 6650-01-498-2633
NSN 6645-01-584-0892