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 6150-00-471-3212
NSN 5990-01-433-3786
NSN 5985-01-475-4997
NSN 5985-01-181-0341
NSN 5935-00-527-1175
NSN 5835-01-376-8454
NSN 6220-01-119-0742
NSN 5999-00-568-8287
NSN 6320-01-378-6191
NSN 7035-01-054-6538
NSN 5925-01-099-4702
NSN 2925-01-359-9818