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 5905-00-088-9558
NSN 5975-01-648-2475
NSN 5950-01-436-5244
NSN 6130-01-033-6410
NSN 6135-01-593-5295
NSN 5985-00-203-1200
NSN 5996-01-493-4329
NSN 5990-00-070-9608
NSN 5920-00-211-4512
NSN 5895-00-983-4105
NSN 6620-00-987-3673
NSN 5835-01-416-6455