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 5990-00-446-0518
NSN 5910-00-081-7951
NSN 6240-01-480-1402
NSN 5950-00-864-8581
NSN 6320-01-021-6633
NSN 6685-01-152-2846
NSN 6220-00-476-6031
NSN 5945-01-027-0724
NSN 5925-00-422-0688
NSN 5905-01-577-8414
NSN 5990-00-931-6304
NSN 6650-00-665-3658