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 2925-01-203-0493
NSN 5990-01-223-9414
NSN 6130-01-242-9778
NSN 5905-01-244-8862
NSN 5985-01-242-2451
NSN 5965-01-258-5662
NSN 5996-01-032-5926
NSN 7035-01-555-8793
NSN 6650-01-648-1864
NSN 5998-01-069-7989
NSN 5945-01-649-6830
NSN 6240-01-467-0751