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 5975-00-953-6731
NSN 6685-01-502-8832
NSN 5985-00-104-9977
NSN 6650-00-287-5868
NSN 5990-01-172-3883
NSN 5920-01-032-4756
NSN 5950-01-158-7197
NSN 5895-01-485-3708
NSN 6320-00-681-1324
NSN 5975-01-094-6943
NSN 6105-00-710-4522
NSN 6650-00-003-5413