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 5915-01-088-8128
NSN 5835-00-170-5238
NSN 7035-01-191-2822
NSN 5910-00-099-9998
NSN 5965-01-063-7894
NSN 5999-00-088-5855
NSN 5915-01-476-8841
NSN 6130-00-798-5514
NSN 6645-00-736-0476
NSN 6135-01-154-3526
NSN 5920-01-108-7498
NSN 5915-01-473-7193