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 5920-00-895-3270
NSN 5895-00-150-7072
NSN 6220-01-171-0957
NSN 4140-01-444-3945
NSN 5960-01-423-0803
NSN 6145-00-477-2959
NSN 6150-01-655-0311
NSN 5985-00-832-2479
NSN 5985-01-181-0341
NSN 5920-01-138-0958
NSN 2925-01-532-2477
NSN 6320-01-046-5228