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 5930-00-155-5917
NSN 6110-00-754-7926
NSN 6220-00-025-0543
NSN 6685-01-054-6892
NSN 6220-01-516-0454
NSN 6650-01-197-4585
NSN 5999-00-432-0765
NSN 5998-01-126-9603
NSN 5910-01-306-6993
NSN 6650-01-211-5628
NSN 6685-01-524-4820
NSN 6135-00-416-2898