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 5996-01-508-4599
NSN 5895-01-326-2533
NSN 6220-01-364-6950
NSN 6685-01-362-4097
NSN 5905-01-045-8666
NSN 5975-01-327-3157
NSN 6130-00-111-1320
NSN 6240-01-162-6749
NSN 5935-01-255-9625
NSN 5855-00-560-0110
NSN 6685-01-231-8850
NSN 5925-00-732-7530