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 5990-01-522-6096
NSN 5960-01-286-3766
NSN 5855-01-222-1242
NSN 6130-01-433-8753
NSN 5920-01-298-1925
NSN 5905-00-840-0763
NSN 5855-01-555-1381
NSN 6135-01-532-7655
NSN 6320-00-360-1744
NSN 7035-00-140-3070
NSN 4140-01-452-2526
NSN 6105-00-357-1801