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E-25 General Standards for Aerospace and Propulsion Systems
AS7250D - Nuts, Self-Locking, Steel, Corrosion and Heat Resistant High Strength, All Metal 1200 °F Use, UN Thread Form
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Nuts, Self-Locking, Steel, Corrosion and Heat Resistant High Strength, All Metal 1200 °F Use, UN Thread Form
This document covers all metal, self-locking wrenching nuts, plate nuts, shank nuts, and gang channel nuts made from a corrosion and heat resistant steel of the type identified under the Unified Numbering System as UNS S66286 and of 160 ksi tensile strength at room temperature, with maximum test temperature of parts at 1200 °F.
Introduction of sampling data including the updating of paragraphs 4.2 and 4.3 and the addition of Tables 8 to 12, addition of new paragraph 3.2 headed Design, addition of new paragraph 3.6 for NDT requirement, paragraphs renumbered and general updating