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 6320-00-004-9158
NSN 6685-01-460-9550
NSN 5895-00-814-8462
NSN 6130-00-949-8449
NSN 6110-01-557-0116
NSN 5925-01-593-1220
NSN 5920-01-388-0103
NSN 5835-01-508-2528
NSN 4140-01-495-8852
NSN 6620-01-027-9252
NSN 6110-01-389-5905
NSN 5998-00-419-0425