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 6105-00-237-6292
NSN 6110-00-521-1782
NSN 5999-01-430-1790
NSN 5925-01-401-5314
NSN 6320-00-400-8042
NSN 6650-00-707-1417
NSN 5945-00-597-5722
NSN 6105-00-709-8811
NSN 5999-00-618-1040
NSN 5935-01-052-9436
NSN 5960-00-297-7099
NSN 5895-01-291-3159