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 5905-01-012-4288
NSN 5950-01-534-8528
NSN 5960-01-536-9763
NSN 5999-01-200-3828
NSN 6220-01-262-7302
NSN 4140-00-373-4833
NSN 5975-00-475-2407
NSN 5855-01-159-1654
NSN 5895-01-407-8133
NSN 6645-01-463-3441
NSN 5945-00-202-0792
NSN 5985-00-069-6570