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 6685-01-114-0102
NSN 5920-01-309-0429
NSN 6105-01-259-6879
NSN 5985-00-584-3795
NSN 6620-01-386-5914
NSN 6650-01-596-4780
NSN 5950-01-447-5990
NSN 5910-01-401-5279
NSN 5996-00-249-8956
NSN 5855-01-445-7980
NSN 6130-01-633-9985
NSN 6105-01-554-7274