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 5915-01-097-7436
NSN 6645-01-593-6149
NSN 5945-01-470-5157
NSN 5965-00-104-3121
NSN 5996-00-549-4258
NSN 2925-01-004-1683
NSN 5945-01-334-8106
NSN 5895-00-924-6630
NSN 5925-01-391-8077
NSN 5905-00-156-9087
NSN 2925-01-624-5647
NSN 6110-01-200-8237