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 2925-01-004-5627
NSN 6620-00-224-7739
NSN 6620-00-021-4425
NSN 6320-01-478-9351
NSN 5998-01-020-7274
NSN 6610-01-400-3880
NSN 5920-00-137-3977
NSN 5895-01-155-1640
NSN 5960-01-641-5493
NSN 6240-01-214-9458
NSN 5965-01-238-9287
NSN 5930-00-021-9807