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 5930-00-876-9358
NSN 7035-01-363-4540
NSN 6240-00-159-1369
NSN 7035-01-341-9098
NSN 5835-01-414-3258
NSN 5905-01-141-8180
NSN 6685-00-539-8060
NSN 5925-01-506-5306
NSN 5985-01-423-0581
NSN 6645-01-197-9090
NSN 6685-01-306-1218
NSN 5920-00-946-5001