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 5950-01-556-7989
NSN 2925-01-048-8464
NSN 6320-01-291-4870
NSN 5960-01-353-0773
NSN 5915-00-880-9074
NSN 6320-01-466-4175
NSN 6135-01-255-4786
NSN 7035-01-225-5114
NSN 5920-01-599-4432
NSN 6645-01-633-1852
NSN 5975-00-212-7754
NSN 5960-01-354-0762