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 5950-00-118-8232
NSN 2925-00-999-8967
NSN 6620-01-193-6588
NSN 5965-00-913-9545
NSN 5915-00-240-3812
NSN 2925-01-368-5773
NSN 5960-01-433-3928
NSN 7035-01-155-9025
NSN 5996-00-567-8946
NSN 5895-01-521-1945
NSN 5915-01-633-9845
NSN 5975-01-351-7948