NF L22-441

NF L22-441

July 1993
Standard Cancelled

Hexagonal nuts. Reduced height. Reduced across flats. ISO RH thread. 4H5H or 5H tolerance class according to diameter.

Main informations

Collections

National standards and national normative documents

Publication date

July 1993

Number of pages

3 p.

Reference

NF L22-441

ICS Codes

49.030.30   Nuts

Classification index

L22-441

Print number

1 - 01/08/1993
Replaced standards (1)
NF L22-441
June 1975
Standard Cancelled
Hexagon thin nuts, with reduced across flats. Right-hand thread.

Standard replaced by (1)
NF L22-441
December 2000
Standard Current
Aircraft bolts and nuts - Nuts, hexagonal, plain, reduced height, reduced across flats, ISO M or ISO MJ threads, 4H5H or 5H tolerance class according to diameter

Le présent document spécifie les caractéristiques des écrous hexagonaux ordinaires, de hauteur réduite et à surplats réduits, à filetage ISO M ou ISO MJ, pour constructions aéronautiques. La norme européenne EN 2923 spécifie un écrou similaire à filetage ISO MJ, en acier résistant à la corrosion E Z 6 NCT 25, argenté, de classification 600 MPa (à température ambiante) / 425 °C. Le présent document recommande, chaque fois que l'interchangeabilité peut être conservée, l'utilisation préférentielle des écrous correspondants définis par EN 2923.

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