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 5910-01-335-7990
NSN 6320-01-304-3639
NSN 6685-01-463-2970
NSN 6240-01-023-5536
NSN 6150-01-492-5246
NSN 5998-01-154-4803
NSN 6685-00-122-4913
NSN 5990-01-328-8225
NSN 6105-01-462-8351
NSN 6145-01-142-9984
NSN 6150-00-193-3226
NSN 5975-00-347-6080