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 6685-01-506-7673
NSN 5895-01-177-7395
NSN 5990-00-250-5205
NSN 5999-00-451-5225
NSN 5925-01-265-0832
NSN 5990-00-085-0829
NSN 5910-01-444-9471
NSN 5855-00-323-0967
NSN 7035-01-471-8349
NSN 5996-01-657-7908
NSN 5965-00-246-5612
NSN 6240-00-563-5846