{"aspect_id":"AS81","aspect_name":"moment-of-mass","aspect_reference":"NIST Special Publication 1038","aspect_symbol":null,"name":"moment-of-mass pound foot","scale_id":"SC835","scale_name":null,"scale_symbol":null,"scale_type":"ratio","symbol":null,"unit_id":"UN174","unit_name":"pound foot","unit_reference":"NIST Special Publication 1038","unit_symbol":"lb.ft "}