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 6685-01-280-5181
NSN 6130-01-435-9241
NSN 5985-01-434-0338
NSN 6105-00-824-2364
NSN 5920-01-104-6198
NSN 5975-00-383-1384
NSN 6105-01-297-3914
NSN 5915-00-656-6976
NSN 5915-01-260-9432
NSN 6610-01-265-1824
NSN 5985-01-508-5310
NSN 6135-01-656-7556