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 5990-01-091-3567
NSN 5960-01-340-4487
NSN 5835-01-478-0157
NSN 6610-01-481-2644
NSN 5996-01-055-1039
NSN 6645-01-541-9114
NSN 7035-01-334-5855
NSN 5920-01-396-1147
NSN 5998-01-051-3897
NSN 5998-01-573-7669
NSN 6645-01-338-9152
NSN 5990-00-069-7195