Here is the response from National Seal co. # 472920 is the "grease" seal.
Thank you for your inquiry. The oil bath replacement for part # 472920 is 370219A. It is made in the U.S.
Regards
Rick
FMMP tech support 800/325-8886
Spec
Timken National Seals 370219A
Oil Seal - 2.250 in Shaft, 3.377 in OD, .475 in Width, Nitrile
I will be buying this US Made seal and going to oil bath system.
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