Nut Castellated
No failure report names the nut castellated. 8 FAA approvals let 6 companies make a replacement nut castellated, Wencor LLC holding the most (2).
Approved replacement parts 8 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a nut castellated and sell it as an approved part for the models named. These are the companies holding such approvals for a nut castellated:
For these models most: Boeing 737 (1), Boeing 727 (1), Boeing 707 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Wencor LLC | Nut-Castellated, 0.190-32 X 0.334, Hex 490135WE | 490135 | Pratt & Whitney JT8D-1, JT8D-1A, JT8D-1B | 2014-05-08 | current |
| Wencor LLC | Nut-Castellated, 0.190-32 X 0.334, Hex 490135WE | 490135 | Pratt & Whitney JT8D-1, JT8D-1A, JT8D-1B | 2010-02-02 | current |
| Turbine Kinetics INC, Subsidiary of Heico CORP | Nut-Castellated, Hex 490135QQ | 490135 | Pratt & Whitney JT8D-1, -1A, -1B | 2001-06-17 | current |
| Approved Quality Manufacturing | Nut Castellated, Hex. 490135QQ | 490135 | Pratt & Whitney JT8D-1, -1A, -1B | 2000-12-07 | current |
| Automatic Screw Machine Products INC | Nut Castellated, Hex, BACN10JD-17 | BACN10JD-17 | Boeing 707-200, 707-100B Long Body,... | 1999-10-21 | current |
| Bristol Industries | Nut-Castellated Double Hex, .250-28 X .390 BH01091-4 | P & W 559846 | Pratt & Whitney JT8D-1, 7A, 7B | 1994-03-19 | current |
| Bristol Industries | Nut-castellated double hex .250-28 x .380 BH01072-4 | P&W 461384 | Pratt & Whitney JT8D-1, 1A, 1B | 1994-01-20 | current |
| Wencor West INC | Nut-Castellated Hex. 0.190-32 x 0.334 490135WE | Pratt & Whtiney 490135 | Pratt & Whitney JT8D-1, -1A, -1B | 1993-08-02 | current |
Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.