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 5855-00-436-3852
NSN 6220-00-719-7714
NSN 6150-01-490-1945
NSN 5920-01-523-5134
NSN 5945-01-247-9911
NSN 5996-01-006-6346
NSN 6110-00-331-8472
NSN 5855-01-449-8685
NSN 5985-01-557-4308
NSN 6650-01-123-0111
NSN 5910-01-082-2055
NSN 6685-01-446-2336