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 6650-01-152-5985
NSN 5985-01-650-1811
NSN 6620-01-247-8535
NSN 5996-01-379-9621
NSN 5960-01-235-7032
NSN 6105-01-423-8242
NSN 5855-01-492-0555
NSN 6645-01-298-4662
NSN 6645-01-372-0126
NSN 5975-01-036-3507
NSN 6620-01-622-4980
NSN 6135-01-407-0594