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 5960-00-175-7620
NSN 2925-01-564-8043
NSN 5950-01-257-9287
NSN 5920-00-816-5218
NSN 5950-01-128-0510
NSN 5855-00-444-2298
NSN 5920-01-152-1949
NSN 5985-01-413-7110
NSN 5945-00-597-5722
NSN 5950-00-810-6241
NSN 5960-00-553-5792
NSN 6220-00-730-5808