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 5999-01-562-9931
NSN 6650-01-484-3013
NSN 6150-00-462-3537
NSN 5925-01-611-7495
NSN 5835-01-095-4400
NSN 5950-01-342-0420
NSN 2925-01-471-4912
NSN 6610-01-444-4851
NSN 6145-00-646-0941
NSN 6145-00-377-0971
NSN 5895-00-077-2163
NSN 5965-01-553-8639