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 5965-01-574-2790
NSN 5835-01-644-4958
NSN 7035-01-236-5743
NSN 5835-01-344-2857
NSN 6685-01-079-1791
NSN 5960-00-377-6558
NSN 5996-01-359-3362
NSN 5905-01-208-6269
NSN 5985-01-357-7969
NSN 5920-01-234-5914
NSN 5950-01-479-2725
NSN 5905-01-514-6861