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 6150-01-452-1446
NSN 6610-01-352-6169
NSN 5975-00-834-1821
NSN 6220-01-611-1224
NSN 6135-00-196-5267
NSN 6105-00-145-7233
NSN 5999-00-100-5156
NSN 6685-00-017-9516
NSN 5960-01-641-5493
NSN 6610-01-511-5260
NSN 6135-01-441-0518
NSN 5930-00-280-1490