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 5975-00-134-0401
NSN 6105-00-059-9166
NSN 6130-01-607-6305
NSN 5930-01-572-4274
NSN 6620-01-141-5747
NSN 5945-01-485-2402
NSN 6150-00-216-6542
NSN 5998-01-450-1124
NSN 7035-01-227-2546
NSN 2925-00-066-4253
NSN 6645-00-372-2618
NSN 6220-01-383-6502