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 6650-01-087-0862
NSN 5895-00-929-0883
NSN 6135-01-050-3194
NSN 6645-01-418-1657
NSN 6110-00-636-1234
NSN 6105-01-261-8028
NSN 6685-01-446-8855
NSN 6645-01-391-6492
NSN 5945-01-026-0506
NSN 5915-00-952-9015
NSN 5935-01-282-6951
NSN 5999-01-469-7481