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 5990-01-489-0366
NSN 5945-01-435-3866
NSN 5915-00-370-0389
NSN 5910-01-581-9168
NSN 5996-01-069-0455
NSN 2925-01-305-1370
NSN 6145-01-365-7801
NSN 5999-00-934-8747
NSN 5895-01-555-7727
NSN 6620-01-611-7907
NSN 5895-01-469-2112
NSN 6645-01-258-5558