Twelve point washer nuts, self-locking, for screws with minimum tensile strength of 1550 N/mm², for temperatures up to 235 °C
Edition 1974-12

Aerospace; nuts, bi-hexagon flange, deep counterbore, self-locking for temperatures up to 235 °C for bolts and screws with nominal tensile strength of 1550 and 1800 N/mm²
Edition 1985-02

Anchor nuts, self-locking, two lug, for temperatures up to 120 °C
Edition 1974-09

Spanner nuts for temperatures up to 650 °C, stainless
Edition 1974-12

Aerospace; spanner nuts for temperatures up to 260 °C
Edition 1980-08

Lock washer for spanner nuts, for temperatures up to 650 °C, stainless
Edition 1974-12

Aerospace - Anchor nuts, self-locking, deep counterbore, double lug, for temperatures up to 235 °C; inactive for a new design
Edition 1996-12

Anchor nuts, self-locking, deep counterbore, double lug, miniature, for temperatures up to 235 °C; inactive for a new design
Edition 1996-12

Anchor nuts, self-locking, deep counterbore, single lug, for temperatures up to 235 °C; inactive for a new design
Edition 1996-12

Anchor nuts, self-locking, deep counterbore, single lug, for temperatures up to 235 °C; Inactive for new design; Corrigendum 1
Edition 2020-01