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 5985-01-181-4837
NSN 5945-01-400-5928
NSN 6130-01-378-3665
NSN 6685-00-317-4319
NSN 5895-00-596-8678
NSN 5855-01-572-2941
NSN 5945-00-822-6149
NSN 6645-00-130-8464
NSN 6645-01-203-9542
NSN 6240-00-391-6402
NSN 5996-01-003-3789
NSN 6135-00-461-3590