I like the NLGI rating also.

Corn Head Grease JD# AN102562 / NLGI O
Golf & Turf Cutting Unit JD# TY25083 / NLGI O

JDN-305 / JDN-360 / IH B-27 (Their is IH)/ NLGI OO

http://tds.econocophillips.com/catalogs/76%20Lubricants/Grease/FOB%20Cotton%20Picker%20TDS.pdf