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This standard specifies the characteristics of concave washers, in alloy steel, cadmium plated, maximum operating temperature 235 °C. They are intended to be used with nuts according to EN 2647. The body responsible for this standard is NA 131-03-01 AA "Verbindungselemente (Spiegelausschuss zu ISO/TC 20/SC 4)" ("Aerospace fasteners (mirror committee to ISO/TC 20/SC 4)") at DIN.
This document replaces DIN EN 2648:1995-08 .