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 5985-01-326-7419
NSN 5985-00-443-9175
NSN 6650-00-353-4097
NSN 6110-00-488-9364
NSN 5915-01-213-6314
NSN 5975-00-775-6430
NSN 6645-01-406-0688
NSN 5960-01-443-4861
NSN 6130-01-099-0643
NSN 5996-01-433-2265
NSN 5930-01-467-9079
NSN 7035-01-165-0234