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 5945-01-189-5262
NSN 5945-01-641-8723
NSN 6105-01-086-6149
NSN 5910-00-053-4281
NSN 6220-01-421-4448
NSN 5996-01-440-5866
NSN 6610-01-006-2305
NSN 6110-00-056-1565
NSN 5975-00-410-8835
NSN 5915-01-465-0070
NSN 5985-01-469-6959
NSN 5855-00-991-0096