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 5990-01-167-7043
NSN 6645-00-574-9712
NSN 6105-01-501-0195
NSN 7035-01-421-2398
NSN 6685-00-543-1409
NSN 7035-01-091-7481
NSN 6620-00-965-9841
NSN 6610-01-131-9133
NSN 6240-00-239-8295
NSN 5895-00-760-2062
NSN 5960-01-536-9763
NSN 5935-01-014-5946