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 5895-01-104-4410
NSN 7035-01-227-2546
NSN 5960-01-411-5217
NSN 4140-00-718-0855
NSN 6645-00-544-8529
NSN 6145-00-781-0018
NSN 6685-01-465-1250
NSN 5985-01-343-0516
NSN 5990-00-226-1152
NSN 5915-01-134-4459
NSN 5999-01-344-6378
NSN 5855-01-382-5169