Where can the recommended torque value be found if it's not specified for nuts?

The recommended torque value for nuts can typically be found in AC 43.13-1B, which is a widely used advisory circular that provides guidelines for the maintenance and repair of aircraft. This document includes information on acceptable practices, standards, and specifications for aircraft maintenance, including torque values for various fasteners.

AC 43.13-1B is particularly significant because it aggregates information from various sources, providing a comprehensive set of standards that are recognized and approved by the FAA. It serves as a reference for acceptable technical data, helping mechanics and engineers ensure that they are applying the correct torque values for nuts when such values are not explicitly provided by the manufacturer.

Other sources, such as the FAA Handbook or a technical specifications manual, may not provide the same level of detail regarding torque settings, while manufacturer guidelines could give specific values that may not cover all situations or standard practices outside of their specific products. Thus, consulting AC 43.13-1B is a reliable approach for identifying recommended torque values when they are not specified directly.