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 5835-01-081-6589
NSN 4140-01-533-8424
NSN 5950-01-220-8640
NSN 5996-00-568-8288
NSN 5905-01-341-8420
NSN 5996-00-642-7606
NSN 5930-01-098-5280
NSN 6135-00-793-1809
NSN 6135-00-276-7625
NSN 6610-01-618-7038
NSN 6130-01-351-7238
NSN 6610-01-261-6102