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 5998-01-024-3684
NSN 6620-01-182-6076
NSN 2925-00-623-0262
NSN 5985-01-536-0330
NSN 5925-01-655-9963
NSN 6240-01-411-1418
NSN 5998-00-601-6625
NSN 5975-00-484-2223
NSN 6320-00-725-0754
NSN 6645-01-449-1824
NSN 5996-01-310-8411
NSN 5855-01-553-1162