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 5998-01-145-2455
NSN 5945-00-188-8645
NSN 6620-01-278-8028
NSN 5920-01-572-5689
NSN 6130-00-596-9565
NSN 6110-01-605-9696
NSN 6220-00-737-5629
NSN 6620-01-492-8470
NSN 6145-01-396-5647
NSN 6220-01-162-7954
NSN 6620-00-977-3779
NSN 6220-00-849-6244