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 6645-01-435-8356
NSN 5910-00-274-6491
NSN 5915-01-392-3168
NSN 6135-01-498-2233
NSN 6110-01-428-7317
NSN 6150-00-224-6580
NSN 6130-01-291-9373
NSN 5960-01-062-4667
NSN 2925-00-601-4173
NSN 5905-01-647-1034
NSN 6150-00-318-1107
NSN 5930-01-576-7812