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 6320-01-019-1028
NSN 5990-00-140-4559
NSN 5965-00-866-3371
NSN 5985-00-582-5770
NSN 6620-00-490-1229
NSN 5999-00-817-4122
NSN 5920-01-594-9961
NSN 5835-00-092-1136
NSN 6220-01-085-4947
NSN 6685-01-025-3418
NSN 5910-01-010-3356
NSN 6685-01-310-8116