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 6685-00-536-0476
NSN 6650-00-804-2039
NSN 5975-01-517-5237
NSN 5990-01-578-1499
NSN 5930-01-437-7026
NSN 5990-01-632-0969
NSN 5950-01-574-3784
NSN 4140-01-629-9225
NSN 5945-01-139-2376
NSN 6610-00-768-9619
NSN 5965-01-426-1278
NSN 5965-00-548-7119