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 5960-00-032-9715
NSN 6150-00-661-0184
NSN 5990-00-103-0528
NSN 6610-01-297-1492
NSN 5925-01-282-5518
NSN 6620-01-067-8336
NSN 5920-01-142-1836
NSN 5920-00-185-9587
NSN 5990-00-292-5017
NSN 5925-01-051-2283
NSN 6645-01-120-4988
NSN 5975-01-620-7331