This "Aerospace Series" Prestandard has been drawn up under the responsibility of AECMA (The
European Association of Aerospace Industries). It is published on green paper for the needs of
AECMA-Members. It has been technically approved by the experts of the concerned Technical
Committee following comment by the Member countries
AECMA PREN 3729-1999 history
1999AECMA PREN 3729-1999 Aerospace Series Rings, Threaded, Self-Locking, Left-Hand Thread, in Heat Resisting Steel FE-PA92HT (A286), Silver Plated Edition P 1