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 5960-01-543-0235
NSN 5965-00-825-6734
NSN 6135-01-121-3225
NSN 6240-01-345-6337
NSN 2925-01-425-7087
NSN 6130-01-184-0753
NSN 5999-01-006-9942
NSN 5999-00-847-3721
NSN 5920-01-082-4375
NSN 6645-00-100-7218
NSN 6240-00-189-2762
NSN 2925-00-774-8247