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 6110-00-107-1664
NSN 5905-01-483-8772
NSN 5975-00-826-1730
NSN 6645-00-833-2395
NSN 5935-01-298-7501
NSN 6240-01-359-6024
NSN 5910-01-435-7748
NSN 6650-01-442-5441
NSN 5945-00-934-9045
NSN 4140-01-326-4062
NSN 6620-01-376-3744
NSN 5925-01-368-6790