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 6130-01-056-7367
NSN 5975-01-371-1821
NSN 6620-01-479-2352
NSN 5960-01-328-8248
NSN 5915-00-459-9641
NSN 5985-00-421-6787
NSN 5925-00-825-1411
NSN 6320-01-278-9832
NSN 5990-01-154-7296
NSN 6240-01-361-9167
NSN 6135-01-413-4747
NSN 6150-01-050-7528