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 6110-00-379-9693
NSN 6320-01-072-2073
NSN 6650-01-123-7249
NSN 5920-01-196-4614
NSN 6645-00-863-5672
NSN 5960-01-473-9203
NSN 5975-01-297-4975
NSN 5835-01-414-3258
NSN 6240-01-279-7606
NSN 6135-01-518-9813
NSN 6145-00-466-4068
NSN 6685-01-590-6272