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 6610-01-531-1079
NSN 6685-01-139-4944
NSN 6610-01-444-4001
NSN 5945-01-038-9193
NSN 6105-01-589-0158
NSN 5965-01-602-0471
NSN 6240-01-336-8337
NSN 5996-01-230-4157
NSN 5855-01-523-1177
NSN 6110-00-267-7422
NSN 5910-01-098-0314
NSN 6650-01-371-9133