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 6220-01-087-5115
NSN 4140-01-496-8406
NSN 5996-00-978-1275
NSN 5920-01-242-9208
NSN 5996-01-253-8676
NSN 6620-00-001-1398
NSN 6320-01-319-3584
NSN 5855-01-506-2016
NSN 6240-01-195-8696
NSN 5855-00-221-9435
NSN 5895-01-502-9453
NSN 6220-01-018-2049