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 6610-01-010-3831
NSN 5920-01-536-3934
NSN 5996-01-068-5790
NSN 2925-00-540-9918
NSN 5915-01-407-6624
NSN 6685-01-496-3349
NSN 5965-01-592-1238
NSN 5835-00-941-4959
NSN 5975-01-599-1674
NSN 5835-01-208-8800
NSN 6620-01-492-4271
NSN 5910-00-060-9774