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 6610-00-931-1291
NSN 6685-01-267-4226
NSN 6220-00-973-9416
NSN 5920-00-054-7048
NSN 6650-00-495-8710
NSN 6645-00-536-1555
NSN 6110-01-223-3768
NSN 6645-01-651-9562
NSN 5920-01-040-0425
NSN 6220-01-232-9947
NSN 6130-00-467-5014
NSN 6240-00-941-2714