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 6135-00-877-1659
NSN 6240-01-167-1831
NSN 5855-00-987-1171
NSN 6320-00-857-4073
NSN 5996-01-173-9789
NSN 6650-01-034-3822
NSN 6220-01-089-6220
NSN 6240-01-411-6714
NSN 6145-00-360-7760
NSN 6320-00-242-3300
NSN 5895-00-227-4752
NSN 5910-00-360-9310