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 4140-00-099-9205
NSN 6610-01-433-2219
NSN 2925-01-507-3698
NSN 6650-01-372-7577
NSN 5855-01-222-1242
NSN 4140-01-156-9980
NSN 5915-01-380-0286
NSN 5930-01-495-8822
NSN 5960-01-448-3497
NSN 5915-00-511-0620
NSN 5930-01-641-9595
NSN 5925-00-494-9565