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 6645-01-569-0491
NSN 5930-01-097-1841
NSN 6610-01-456-1166
NSN 5999-00-357-3643
NSN 5925-01-489-2791
NSN 6135-00-010-5275
NSN 5950-01-577-0001
NSN 6110-01-024-9428
NSN 6110-01-543-0282
NSN 5950-01-138-3816
NSN 5975-01-166-5656
NSN 5990-01-443-2931