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 6645-01-477-1140
NSN 5915-00-318-8872
NSN 5920-01-365-5878
NSN 5905-01-307-9196
NSN 6685-01-622-3022
NSN 5925-00-051-4892
NSN 6685-01-003-4555
NSN 5996-01-290-0988
NSN 5895-01-450-6932
NSN 6650-01-483-2399
NSN 6220-01-164-2053
NSN 5910-00-263-0462