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 5985-01-065-3990
NSN 5985-01-425-9690
NSN 5960-00-167-0397
NSN 7035-01-165-0234
NSN 5910-01-633-9963
NSN 6645-01-152-5207
NSN 6620-00-838-6954
NSN 5905-00-153-8464
NSN 6650-01-248-7633
NSN 4140-00-867-6617
NSN 7035-01-026-0117
NSN 5990-01-400-3299