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 5965-01-204-1423
NSN 5895-01-592-2173
NSN 7035-01-411-6062
NSN 6220-00-941-8758
NSN 6135-01-307-6006
NSN 6645-01-606-2164
NSN 5998-00-770-1975
NSN 6130-01-352-5644
NSN 6110-01-601-2543
NSN 5965-00-342-5126
NSN 6105-01-015-0827
NSN 6645-00-739-6718