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 6685-00-100-4753
NSN 5950-01-593-3875
NSN 5975-01-502-1908
NSN 6620-00-469-2502
NSN 5950-01-570-5389
NSN 6130-00-688-6350
NSN 5920-00-555-1877
NSN 5960-01-544-1273
NSN 6685-01-100-1071
NSN 5945-01-537-6663
NSN 6110-01-449-1641
NSN 6135-00-196-5267