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 5925-01-608-4259
NSN 5930-01-279-6372
NSN 6150-01-512-2772
NSN 5960-01-138-5897
NSN 5905-01-468-1055
NSN 6135-00-231-7257
NSN 6650-01-183-0711
NSN 5895-01-640-8458
NSN 5965-01-095-9767
NSN 5925-00-151-9684
NSN 6110-00-410-2576
NSN 6240-01-333-8390