This study addresses the adequacy of sockets, wrenches, and torque adapters conforming to AS954 to wrench 12 point fasteners with wrenching configurations conforming to AS870C. Reported wrenching problems with smaller sizes are investigated through examining the combined tolerances on the fasteners and wrenches, conducting torque testing on typical high strength lock nuts. Possible solutions to correct these wrenching problems are presented.
This SAE Aerospace Standard covers high strength commercial sockets and universal sockets which possess the strength, clearances, and internal wrenching design so configured that, when mated with hexagon (6 point) fasteners, they shall transmit torque to the fastener without bearing on the outer 5% of the fastener's wrenching points. This document provides additional requirements beyond ANSI B107.5 appropriate for aerospace use. Inclusion of dimensional data in this document is not intended to imply all of the products described therein are stock production sizes. Consumers are requested to consult with manufacturers concerning lists of stock production sizes.
This SAE Aerospace Recommended Practice (ARP) covers the requirements for alternative coatings used in lieu of nickel-chromium plating and the surface finish requirements for aerospace hand tools. It is intended as a guide toward standard practice and is subject to change to keep pace with experience and technical advances.
This SAE Aerospace Standard (AS) covers high strength thin wall ratcheting box wrenches which possess the strength, clearances, and internal wrenching design so configured that, when mated with bihexagonal (12 point) fasteners conforming to the requirement of AS870 for inch sizes and ISO 4095 for metric sizes, they shall transmit torque to the fastener without bearing on the outer 5% of the fastener’s wrenching points. Inclusion of dimensional data in this document is not intended to imply that all 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.
This SAE Aerospace Standard (AS) covers open box end flare nut wrenches. These wrenches are designed for nondistorting usage by transmitting torque to tube fittings without bearing on the apex of the fitting wrenching surfaces.
This SAE Aerospace Standard (AS) covers variable speed, reversible 0.375 (3/8) in chuck battery powered drills, with removable, rechargeable battery pack, used for general maintenance and construction where a battery powered tool is required. When electromagnetic interference (EMI) suppression is required by the purchaser, this document satisfies EMI requirements for driver drills. This document may involve hazardous materials, operations, or equipment. This document does not purport to address all the safety problems associated with its use. It is the responsibility of the user of this equipment to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to its use. Users are cautioned to read all manufacturer's instructions prior to use.
This SAE Aerospace Standard (AS) covers variable speed, reversible battery powered drills with removable, rechargeable battery pack and either 3/8 inch or ½ inch chuck used for general maintenance and construction where a battery powered tool is required. This document also satisfies EMI requirements for driver drills, where EMI suppression is required by the purchaser. This document may involve hazardous materials, operations, or equipment and does not purport to address all of the safety considerations associated. It is the responsibility of the user of a piece of equipment to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to its use. Users are cautioned to read all manufacturer’s instructions prior to use.
This SAE Aerospace Standard (AS) covers variable speed, reversible battery powered drills with removable, rechargeable battery pack and either 3/8 inch or ½ inch chuck used for general maintenance and construction where a battery powered tool is required. This document also satisfies EMI requirements for driver drills, where EMI suppression is required by the purchaser. This document may involve hazardous materials, operations, or equipment and does not purport to address all of the safety considerations associated. It is the responsibility of the user of a piece of equipment to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to its use. Users are cautioned to read all manufacturer’s instructions prior to use.
This SAE Aerospace Standard (AS) covers handles and attachments for use with sockets and crowfoot wrenches in aerospace applications involving high torque, limited clearances, and generally clean conditions. This document provides additional requirements beyond ANSI B107.10M appropriate for aerospace use. The use of adapters, either enlarging or reducing, for turning high-strength fasteners is an unsafe practice. Adapters are not included in this document. The listing of tools in this document does not insure that they are available commercially.
This SAE Aerospace Standard (AS) covers high strength thin wall commercial sockets, flexible sockets, box wrenches and 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 AS 870, they shall transmit torque to the fastener without bearing on the outer 5% of the fastener's wrenching points.
This Aerospace Standard (AS) covers reversible ratchet handles and high strength thin wall commercial sockets, flexible sockets, box wrenches and torque adapters designed for general usage which possess the strength, clearances, and internal wrenching design so configured that, when mated with 12-point fasteners conforming to the requirement of AS 870, they shall transmit torque to the fastener without bearing on the outer 5% of the fastener's wrenching points.
This Aerospace Standard (AS) covers reversible ratchet handles and high strength thin wall commercial sockets, flexible sockets, box wrenches and torque adapters designed for general usage which possess the strength, clearances, and internal wrenching design so configured that, when mated with 12-point fasteners conforming to the requirement of AS 870, they shall transmit torque to the fastener without bearing on the outer 5% of the fastener's wrenching points.
The thin wall series sockets and box wrenches covered herein are those designed for general usage on aerospace engine 12-point threaded fastener hardware. Standardized wrench clearance dimensions are given, as well as a stringent test procedure to ensure reliability.
This Aerospace Standard (AS) covers reversible ratchet handles and high strength thin wall commercial sockets, flexible sockets, box wrenches and torque adapters designed for general usage which possess the strength, clearances, and an internal wrenching design so configured that, when mated with 12-point fasteners conforming to the requirement of AS 870, they shall transmit torque to the fastener without bearing on the outer 5% of the fastener's wrenching points.