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 5925-01-433-3952
NSN 5996-01-579-1971
NSN 5910-01-381-2767
NSN 6135-00-269-5843
NSN 5855-01-033-1375
NSN 6220-01-569-7715
NSN 5915-01-522-4121
NSN 5990-00-935-5610
NSN 5999-01-062-5412
NSN 6620-00-555-3992
NSN 6685-01-034-7210
NSN 6620-00-086-5223