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 5910-01-084-4715
NSN 5985-01-069-1285
NSN 5920-01-493-6817
NSN 6610-01-029-8749
NSN 5945-01-403-2800
NSN 5990-00-122-8698
NSN 6240-01-112-7577
NSN 5895-01-029-3791
NSN 5965-01-478-9375
NSN 6110-00-596-9124
NSN 6240-00-082-1142
NSN 6145-01-170-1441