I have used Duralast axle seals before and they had NATIONAL stamped on the lip. Reasonable to conclude this would be no different.
2008 Jeep Patriot Sport FWD 2.4L 246K QSUD 5w20 Fram UG
2000 Ford Expedition AWD 4.6L Cleveland 298K STech FS HM 5W30 FL-820S
1998 Dodge Grand Caravan FWD 3.8L V-6 163K Car Heaven