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 6135-01-310-9866
NSN 5975-01-173-8789
NSN 6620-01-333-4734
NSN 6610-01-209-2524
NSN 6645-01-438-1524
NSN 4140-00-960-6573
NSN 6105-00-265-7545
NSN 2925-00-228-8854
NSN 4140-00-332-5956
NSN 5945-01-054-1799
NSN 6240-01-090-8031
NSN 5990-00-067-6545