标准摘要 Cross Reference: ANSI/ASM/B46.1,ANSI/Y14.36,ANSI/Y14.5M,ARP4296,AS4321,AS4341,AS478,AS478J,FED-QQ-A-225/6,FED-QQ-P-35,FED-QQ-S-763,MIL-A-8625 展开完整摘要 英文名称NUT, RETAINED, FOR FLARED TUBE FITTINGS