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 5925-01-225-1978
NSN 5835-00-698-9824
NSN 5965-01-523-4572
NSN 5895-01-425-2297
NSN 6645-00-392-8728
NSN 2925-00-365-3289
NSN 5950-00-753-0955
NSN 5950-01-138-8054
NSN 6645-00-634-9317
NSN 5990-01-507-7495
NSN 5965-01-278-8218
NSN 5985-00-279-4956