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 6645-01-521-4383
NSN 6645-01-384-0628
NSN 5960-01-081-3949
NSN 5930-00-138-2786
NSN 6135-00-377-9165
NSN 5985-01-328-4761
NSN 6130-01-007-4611
NSN 6685-01-642-4465
NSN 6110-01-581-5626
NSN 5965-01-625-4776
NSN 6650-01-093-5864
NSN 5910-00-237-5250