Meyers hubs would be the " other approved means " shown below. This applies to both ends of a conduit even if one end is not in a classified area.
The NEC and Handbook commentary is also paraphrased below:
Bonding requirements intended to address electrical equipment installed in a Class I, Division 1 or Division 2 locations are covered by NEC Article 501.30, 250.100 & 250.92(B). Bonding methods are intended to provide a mechanical/electrical connection that is low impedance and free from accidental arcing due to loose connections and apply to raceways and raceway-to-enclosure connections both inside and outside of the classified Article 501.30(A) Grounding & Bonding, Class I, Division 1 & 2 states; the locknut-bushing and double- locknut types of contacts shall NOT be depended on for bonding purposes, but bonding jumpers with proper fittings or other approved means of bonding shall be used.
Article 250.100 Bonding in Hazardous (Classified) Locations states; Regardless of the voltage of the electrical system, the electrical continuity of non-current carrying metal parts of equipment, raceways, and other enclosures in any hazardous (classified) location as defined in Article 500 shall be ensured by any of the methods specified in Article 250.92(B) (2) through(B)(4) that are approved for the wiring method used. Method (4) in 250.92(B) requires other similar devices, such as listed bonding-type locknuts or bushings. Standard locknuts or sealing locknuts are not acceptable as the "sole means" for bonding.
