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 6145-00-988-1429
NSN 6650-01-204-5981
NSN 5920-01-045-1484
NSN 5965-01-038-5994
NSN 6145-01-460-8927
NSN 6110-00-847-8673
NSN 5990-01-061-4169
NSN 5855-01-657-7657
NSN 5920-01-599-0515
NSN 6150-01-521-2775
NSN 6685-00-932-8990
NSN 6130-01-530-4209