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 5895-01-620-5299
NSN 6130-01-593-7405
NSN 6145-00-076-5865
NSN 6110-01-429-9304
NSN 5975-00-508-3903
NSN 6320-01-006-6138
NSN 6320-00-186-6452
NSN 5855-01-107-5925
NSN 6650-01-526-3182
NSN 5985-01-106-9974
NSN 5910-01-534-8289
NSN 6110-00-225-9021