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 6620-01-373-0174
NSN 5905-01-527-6833
NSN 6150-01-476-7770
NSN 5925-01-158-0762
NSN 5999-01-503-5410
NSN 5975-00-019-8993
NSN 5935-01-384-3835
NSN 6220-01-602-9275
NSN 6240-01-141-5230
NSN 5925-01-164-0837
NSN 5990-01-224-8052
NSN 7035-00-562-9881