[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"legacy-detail-army-1607":3},{"code":4,"branch":5,"codeSystem":6,"events":7},"1607","army","SSN",[8],{"title":9,"status":10,"effectiveFrom":11,"effectiveTo":12,"successors":13,"citations":24,"notes":39},"Heavy Mortar Crewman","split",null,"1949-04-29",[14,16,18,20,22],{"code":15,"liveCode":11,"name":11},"1812",{"code":17,"liveCode":11,"name":11},"2812",{"code":19,"liveCode":11,"name":11},"4812",{"code":21,"liveCode":11,"name":11},"2745",{"code":23,"liveCode":11,"name":11},"4745",[25,30,33,36],{"title":26,"url":27,"accessedAt":28,"sourceDate":12,"locator":29},"SR 650-207-1, Career Guidance: Infantry Career Field, 29 April 1949","https://books.google.com/books?id=77RxEy6oYR0C&pg=PA19","2026-07-30","printed p. 19, paragraph 5 rescinded-code list: 1607 Heavy Mortar Crewman",{"title":26,"url":31,"accessedAt":28,"sourceDate":12,"locator":32},"https://books.google.com/books?id=77RxEy6oYR0C&pg=PA22","printed p. 22, paragraph 8a: appendix T/O&E conversions effective on the date of the regulation",{"title":26,"url":34,"accessedAt":28,"sourceDate":12,"locator":35},"https://books.google.com/books?id=77RxEy6oYR0C&pg=PA47","printed p. 47, T/O&E change sheet; 1607 position row(s) to 1812, 2812, 4812",{"title":26,"url":37,"accessedAt":28,"sourceDate":12,"locator":38},"https://books.google.com/books?id=77RxEy6oYR0C&pg=PA49","printed p. 49, T/O&E change sheet; 1607 position row(s) to 2745, 4745","Paragraph 5 rescinds this SSN. Heavy-mortar platoon and squad leadership converts to 1812/2812; gunner and filler positions to 4812; appendix light-role exceptions convert to 2745/4745. Repeated position-level change-sheet rows are collapsed into this one canonical predecessor event, preserving first-source successor order. The predecessor remains in the SSN namespace; successors are numeric MOS codes."]