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 5985-00-838-3851
NSN 6320-00-433-2773
NSN 5999-01-423-1030
NSN 5965-01-111-6031
NSN 6610-00-071-0057
NSN 6620-01-462-0001
NSN 6650-01-544-0366
NSN 5990-01-548-5979
NSN 6145-01-213-8461
NSN 5996-00-361-9901
NSN 5950-00-819-5141
NSN 5905-01-027-1470