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 5975-01-366-4190
NSN 6150-00-246-2425
NSN 5855-01-539-0639
NSN 5998-00-991-4495
NSN 6620-01-136-4473
NSN 5835-00-224-9148
NSN 6610-00-567-9385
NSN 6105-01-535-2291
NSN 6645-01-168-8465
NSN 5925-01-158-0762
NSN 5910-00-218-1114
NSN 6620-01-411-5750