[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"legacy-detail-army-31M1":3},{"code":4,"branch":5,"codeSystem":6,"events":7},"31M1","army","MOS",[8],{"title":9,"status":10,"effectiveFrom":11,"effectiveTo":12,"successors":13,"citations":18,"notes":25},"MCHAN XMSN SYS OP","converted",null,"1995-04-01",[14,16],{"code":15,"liveCode":11,"name":11},"31S",{"code":17,"liveCode":11,"name":11},"31R",[19],{"title":20,"url":21,"accessedAt":22,"sourceDate":23,"locator":24},"DA Pam 611-21, chapter 10, Table 10-4, Enlisted MOS Conversion Listing","https://api.army.mil/e2/c/downloads/2025/12/04/7573670f/chapter-10-enlisted-base-chapter.pdf","2026-07-29","2025","Table 10-4, PDF p. 253","DA Pam 611-21 Table 10-4 maps predecessor MOSC 31M1 to 31S, 31R; source successor entries: 31S SATELLITE COMMUNICATION SYSTEMS OPERATOR- MAINTAINER; 31R MULTICHANNEL TRANSMISSION SYSTEMS OPERATOR-MAINTAINER; conversion effective 01 Apr 1995."]