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 5905-01-028-0173
NSN 2925-01-359-4027
NSN 6320-01-573-6490
NSN 5920-01-429-1375
NSN 6150-01-305-5780
NSN 6620-01-597-0512
NSN 5835-00-649-9402
NSN 5855-01-445-6551
NSN 5950-00-833-6045
NSN 6110-01-655-5030
NSN 5910-01-069-0253
NSN 5910-00-084-0275