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 5895-00-892-4392
NSN 5990-01-094-6826
NSN 6110-00-614-9218
NSN 5835-01-386-4027
NSN 6620-01-065-8265
NSN 5920-01-020-7659
NSN 6645-00-527-6531
NSN 6145-01-157-3488
NSN 5920-01-213-1513
NSN 6320-00-116-3658
NSN 4140-01-250-4202
NSN 6130-00-128-0034