本SAE航空航天标准（AS）涵盖高强度薄壁（商用）公制套筒、通用公制套筒、公制套筒扳手和公制扭矩适配器，其具有强度、间隙和内部扳手设计，当与符合ISO 4095要求的12点紧固件配合时，它们应将扭矩传递至紧固件，而不受紧固件扭定点外部5%的影响。本标准提供了ASME B107以外的附加要求。100和B107。适合航空航天使用。本文件中包含的尺寸数据并不意味着本文所述的所有产品都是库存生产尺寸。 消费者应就库存生产规模清单咨询制造商。已确定了套筒扳手和组合扳手长度的尺寸限制，以便为刀具存储应用提供配置控制。AS955取代MA4534和MA4535。

This SAE Aerospace Standard (AS) covers high strength thin wall (commercial) metric sockets, universal metric sockets, metric box wrenches and metric torque adaptors which possess the strength, clearances, and internal wrenching design so configured that, when mated with 12 point fasteners conforming to the requirement of ISO 4095, they shall transmit torque to the fastener without bearing on the outer 5% of the fastener's wrenching points. This standard provides additional requirements beyond ASME B107.100 and B107.5M appropriate for aerospace use.Inclusion of dimensional data in this document is not intended to imply that all of the products described herein are stock production sizes. Consumers are requested to consult with manufacturers concerning lists of stock production sizes. The dimensional limits of box and combination wrench lengths have been established to provide configuration control for tool storage applications.AS955 supersedes MA4534 and MA4535.