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 5985-01-003-7752
NSN 5960-01-167-8796
NSN 5950-01-029-2133
NSN 6620-01-288-8249
NSN 5965-01-633-8849
NSN 5925-00-337-8138
NSN 5915-00-525-3990
NSN 5920-01-416-0384
NSN 6320-01-501-7935
NSN 6150-01-387-5732
NSN 6320-01-359-3921
NSN 5905-01-532-3422