[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"legacy-detail-navy-MoMM(SRG)":3},{"code":4,"branch":5,"codeSystem":6,"events":7},"MoMM(SRG)","navy","RATING",[8],{"title":9,"status":10,"effectiveFrom":11,"effectiveTo":12,"successors":13,"citations":17,"notes":29},"Motor Machinists's Mate (SR) (Gasoline Engine Mechanics)","merged",null,"1948",[14],{"code":15,"liveCode":15,"name":16},"EN","Engineman",[18,24],{"title":19,"url":20,"accessedAt":21,"sourceDate":22,"locator":23},"Charles A. Malin/Bureau of Naval Personnel, Compilation of Enlisted Ratings and Apprenticeships, U.S. Navy, 1775 to 1969 (rev. Dec. 1969)","https://web.archive.org/web/20240704193222id_/https://www.history.navy.mil/research/library/online-reading-room/title-list-alphabetically/c/enlisted-ratings-in-u-s-navy-1775-1969.html","2026-07-30","1969-12","#anchore, Engineman entry; reproduced on archived Ohio PDF p. 7",{"title":25,"url":26,"accessedAt":21,"sourceDate":27,"locator":28},"Charles A. Malin/Bureau of Naval Personnel, Abbreviations Used for Navy Enlisted Ratings (1970)","https://web.archive.org/web/20210825164342id_/https://www.history.navy.mil/research/library/online-reading-room/title-list-alphabetically/a/abbreviations-used-for-navy-enlisted-ratings.html","1970","alphabetic abbreviation list, MoMM(SRG), EN entries","Malin/BUPERS source assertion: Re-established at all pay grades 1948 from the ratings of Motor Machinist's Mate, Motor Machinists's Mate (SR) (Diesel Engine Mechanics), and Motor Machinists's Mate (SR) (Gasoline Engine Mechanics). Normalized as merged/included. One or more historical long-title variants were normalized to a reviewed companion-list abbreviation by similarity match; the intermediate ledger records the method and the audit lists the source anomalies."]