Ross Hill / NOV Cross-Reference

Q: Did NOV change the Ross Hill part numbers?

Mostly no; NOV kept most original Ross Hill numbering. Certain DC control modules carry distinct NOV 6415- numbers.

Q: Is your cross-reference guaranteed?

Numbers are for reference and believed accurate; verify the exact part and revision against the nameplate before ordering.

When NOV acquired Ross Hill Controls and the Hill Hayes SCR line, most numbering carried straight over, so in most cases the Ross Hill number and the NOV number are the same. The DC control modules are the main place that changed. Here's how the common parts map.

Ross Hill P/N	NOV P/N	Type	Notes
0521-2500-14	0521-2500-14	AC	AC Control Module, numbering carried over
0522-2400-23	0522-2400-23	DC	DC Control Module
0522-2400-21	6415-2400-21	DC	Confirmed cross-reference, NOV used a distinct 6415- number
6702ED584	6702ED584	Component	Eaton / Cutler-Hammer contactor used in Ross Hill SCR systems

Reference only. NOV largely retained Ross Hill numbering; the distinct NOV 6415- numbers appear mainly on certain DC modules. Verify the exact part and revision before ordering.

Module detail: Ross Hill AC Module · Ross Hill DC Module. To map any other number, use Cross-Reference.

Frequently asked

Did NOV change the Ross Hill part numbers?

Mostly no. NOV kept the original Ross Hill numbering on most parts. The main exception is certain DC control modules, which carry distinct NOV 6415- numbers.

Is your cross-reference guaranteed?

Numbers are believed accurate and are for reference. Always verify the exact part and revision against the nameplate before ordering.

Frequently asked

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