标准摘要 Cross Reference: AMS2411,AMS5734,AMS5737,AMS5853,AS7251,AS8879,ASMEB46.1,ASMEY14.36M,ASMEY14.5M,ASTME1417 展开完整摘要 英文名称NUT, SELF-LOCKING, DOUBLE HEXAGON, REDUCED ENVELOPE, UNS S66286