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 6645-01-578-6815
NSN 6645-01-297-1117
NSN 5855-01-464-5084
NSN 5895-01-541-0134
NSN 6105-01-414-8829
NSN 6620-01-514-7786
NSN 6685-01-558-6009
NSN 4140-01-472-2768
NSN 5996-01-077-2231
NSN 5910-00-192-1231
NSN 6650-00-834-9062
NSN 5935-00-247-3203