This «Aerospace Series» pre-standard has been drawn up under the responsibility of AECMA
(Association Européenne des Constructeurs de Matériel Aérospatial). It is published on green paper
for the needs of AECMA-Members. It has been technically approved by the experts of the concerned
Commission following comment by the Member countries.
AECMA PREN 2542-1989 history
1989AECMA PREN 2542-1989 Steel FE-PL43S Annealed Bar and Wire De Less Than or Equal to 40 mm for Prevailing Torque Nuts
1986AECMA PREN 2542-1986 Steel FE-PL43S 1250 Less Than or Equal to Rm Less Than or Equal to 1400 MPa Bar and Wire De Less Than or Equal to 40 mm Only for Prevailing Torque Nuts