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 6650-01-619-9986
NSN 5935-00-592-5188
NSN 5930-01-465-2884
NSN 6240-01-509-9606
NSN 5915-01-259-5705
NSN 6135-01-116-3385
NSN 5998-01-212-9675
NSN 5990-00-373-9787
NSN 5965-00-882-6949
NSN 5945-00-597-5722
NSN 6240-00-115-8575
NSN 5996-00-891-2317