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 6320-01-504-3948
NSN 5950-01-134-1344
NSN 5920-01-634-0250
NSN 5975-01-214-6556
NSN 5985-01-272-7309
NSN 5905-00-400-6040
NSN 5975-00-511-7206
NSN 5910-01-209-6756
NSN 5910-01-599-9876
NSN 5925-01-180-4574
NSN 5960-01-142-1995
NSN 5915-00-389-1126