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 5999-01-541-3778
NSN 5998-01-242-5917
NSN 7035-00-803-3056
NSN 5965-00-925-1725
NSN 5998-01-044-7203
NSN 5910-00-741-6056
NSN 5835-00-426-2402
NSN 6620-00-106-9658
NSN 4140-01-560-6214
NSN 6645-01-342-8199
NSN 5985-01-380-5453
NSN 6135-00-840-6451