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 5950-00-072-4231
NSN 6320-01-326-1316
NSN 6220-01-464-1128
NSN 5999-01-448-9825
NSN 5905-00-801-8037
NSN 6145-00-974-3987
NSN 5990-00-605-0391
NSN 5996-01-069-2915
NSN 6130-01-394-7480
NSN 5945-00-080-4428
NSN 5920-01-034-0125
NSN 6240-01-370-5818