Description
MS21042-06 Nut — Self Locking
Self-locking nut, standard MS part number. The Cirrus maintenance manual lists it (or an equivalent) for the main wing attach ground strap installation on the SR20 and SR22. The IPC lists it in the installations below.
Fit, per the Cirrus Illustrated Parts Catalog:
- SR20 serials 2339 and up: crew seat breakover mechanism (IPC 25-10-01), eight per aircraft
- SR20 serials 2339 and up: engine baffling installation (IPC 71-00-02), six per aircraft, after mandatory SB2X-79-05
- SR22 serials 3026 through 3402: stall warning horn assembly (IPC 27-31-01), two per aircraft
Serial ranges are transcribed from the Cirrus IPC. Confirm your aircraft's serial number, installed equipment and service bulletin compliance against current Cirrus documents before ordering.
Reference only — not a maintenance authority. The part numbers, effectivity and service bulletin references shown above are published as an aid to our customers and may not reflect current Cirrus data. They must not be used as the basis for installation. Mechanics must obtain and use their own current Cirrus Illustrated Parts Catalog and the current revision of any service bulletin, and must verify applicability against the aircraft serial number, service bulletin compliance and any installed STCs, before ordering or installing any part.