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 5855-01-380-9950
NSN 6145-00-883-7420
NSN 5998-01-399-8714
NSN 7035-00-574-4223
NSN 5920-00-444-2127
NSN 5915-00-536-0352
NSN 5965-01-197-6924
NSN 5985-01-514-9811
NSN 5965-00-396-3411
NSN 6620-01-389-3324
NSN 5895-01-342-7748
NSN 6240-00-004-2516