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 5996-01-441-5798
NSN 6240-00-166-2271
NSN 6645-01-105-9757
NSN 5945-01-550-3301
NSN 6110-01-243-5911
NSN 5945-00-754-3888
NSN 7035-01-548-1483
NSN 6135-01-468-6491
NSN 5895-01-118-7652
NSN 5990-00-636-4218
NSN 5910-00-161-4509
NSN 6320-01-562-1599