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 5999-00-428-3588
NSN 5915-00-117-7066
NSN 5999-01-587-1300
NSN 6685-01-448-7164
NSN 6130-01-447-2797
NSN 6610-01-476-7412
NSN 5910-01-150-3496
NSN 6320-01-253-9585
NSN 6610-00-654-9877
NSN 5945-01-382-3373
NSN 5996-00-974-6203
NSN 6320-01-592-6248