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NA 131

DIN Standards Committee Aerospace

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DIN EN 4323 [CURRENT] references following documents:

Document number Edition Title
EN 3905 2008-04 Aerospace series - Six lobe recesses for bolts - Technical specification More 
EN 3911 2010-10 Aerospace series - Six lobe recess - Geometrical definition More 
ISO 5855-2 1999-10 Aerospace - MJ threads - Part 2: Limit dimensions for bolts and nuts More