Heat treated
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 6130-00-540-5305
NSN 6220-00-135-0879
NSN 5930-01-486-3059
NSN 6650-00-759-1390
NSN 5920-00-452-3889
NSN 5960-00-186-6344
NSN 5910-01-562-3401
NSN 5930-00-366-1357
NSN 6145-00-122-9517
NSN 6620-00-827-1611
NSN 5835-00-170-5238
NSN 5915-01-131-8803