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 5930-01-324-2826
NSN 6110-01-227-3055
NSN 5925-01-188-7630
NSN 6645-01-231-9891
NSN 5996-00-707-6228
NSN 6135-01-202-8113
NSN 4140-00-557-7001
NSN 5998-00-145-6773
NSN 2925-01-494-0693
NSN 7035-00-803-3056
NSN 4140-00-611-2356
NSN 5985-00-843-5050