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 6105-00-287-0989
NSN 4140-01-155-0508
NSN 6150-01-598-6590
NSN 6135-01-338-2281
NSN 6135-01-247-5660
NSN 6620-01-607-5738
NSN 5930-01-099-9744
NSN 6645-01-369-2478
NSN 5915-01-602-1262
NSN 6135-00-209-6918
NSN 6150-00-271-0520
NSN 6240-00-828-6228