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 6130-01-352-5644
NSN 5999-00-983-5461
NSN 7035-01-344-8708
NSN 5945-00-189-1302
NSN 5975-01-501-0352
NSN 2925-01-113-6904
NSN 6620-01-352-5640
NSN 5910-01-227-9977
NSN 5925-01-154-2468
NSN 6610-01-473-0521
NSN 6145-00-196-1394
NSN 5975-01-073-6185