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 4140-01-123-9149
NSN 5975-00-309-2752
NSN 6610-00-406-8544
NSN 6610-01-079-8804
NSN 2925-01-118-6125
NSN 5975-01-476-8899
NSN 5915-00-329-6608
NSN 6320-00-036-3688
NSN 6130-01-543-5798
NSN 5915-01-335-3020
NSN 6220-01-391-6084
NSN 5915-01-023-9822