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 6105-01-467-8915
NSN 5855-01-500-0449
NSN 5895-01-192-2661
NSN 6220-00-479-3329
NSN 6610-01-249-3243
NSN 4140-01-641-7869
NSN 5975-00-740-8367
NSN 6240-01-055-0801
NSN 6135-00-100-0485
NSN 5945-00-326-1839
NSN 4140-01-254-1659
NSN 6645-00-262-7448