| LCD24006 | Insert, 3/8 Valved Coupling | Duncan Aviation Inc | Current | 2010-01-07 |
| LCD24006 | Insert, 3/8 Inch Valved Coupling | Duncan Aviation Inc | Current | 2013-12-08 |
| LH Placard | 74051300-3.0.1 | Duncan Aviation Inc | Current | 2011-05-14 |
| Light Assembly | 74050800-1.0.1 | Duncan Aviation Inc | Current | 2011-05-14 |
| LL305610 | Cone | Timken Company The | Historical | 2000-04-10 |
| LM-465-113 | Yoke Assembly | Lord Corporation | Current | 2025-05-28 |
| LM-465-61 | Yoke Assembly | Lord Corporation | Current | 2025-05-28 |
| LM-465-SA22-15 | Yoke Kit | Lord Corporation | Current | 2025-05-28 |
| LM-465-SA24 | Forward Isolator Assembly | Lord Corporation | Current | 2025-05-28 |
| LM-465-SA26-22 | Aft Isolator Assembly | Lord Corporation | Current | 2025-05-28 |
| LM-465-SA34 | Forward Mount Kit | Lord Corporation | Current | 2025-05-28 |
| LM-465-SA35 | Aft Mount Kit | Lord Corporation | Current | 2025-05-28 |
| LM-465-SA37 | Conical Fitting Assembly | Lord Corporation | Current | 2025-05-28 |
| LM-465-SA38 | Yoke Kit | Lord Corporation | Current | 2025-05-28 |
| LM-833-SA13 | Engine 2 Isolator | Lord Corporation, Mechanical Products Division | Current | 2003-12-17 |
| LM-833-SA20-6 | Front Mounting Assembly | Lord Corporation, Mechanical Products Division | Current | 2002-12-04 |
| LM-833-SA21 | Forward Isolator | Lord Corporation, Mechanical Products Division | Current | 2003-12-17 |
| LM-833-SA9 | Engine Isolator | Lord Corporation | Current | 2003-12-17 |
| LM67000LA | Cone | Timken Company The | Historical | 2000-06-19 |
| LM833SA10 | Engine 2 Isolator | Lord Corporation, Mechanical Products Division | Current | 1992-12-31 |
| LM833SA13 | Engine 2 Isolator | Lord Corporation, Mechanical Products Division | Current | 1992-12-31 |
| LM833SA18-1 | Aft Isolator | Lord Corporation, Mechanical Products Division | Current | 1992-12-31 |
| LM833SA20-3 | Forward Isolator | Lord Corporation, Mechanical Products Division | Current | 1992-12-31 |
| LM833SA21 | Forward Isolator | Lord Corporation, Mechanical Products Division | Current | 1992-12-31 |
| LM833SA22 | Aft Isolator | Lord Corporation, Mechanical Products Division | Current | 1992-12-31 |
| LM833SA9 | Engine Isolator | Lord Corporation, Mechanical Products Division | Current | 1992-12-31 |
| LORD P/N: LM-833-SA20-6 | Front Mounting Assembly | Lord Corporation, Mechanical Products Division | Current | 2007-01-07 |
| LPF-1 | Low-pass-filter | B/E Aerospace Inc | Current | 1992-10-04 |
| LRA 3430-10 | Connector | Dassault Falcon Jet Corp (CANCELLED 2/7/2012) | Historical | 1982-10-18 |
| LRA 3430-11 | Drain Doubler | Dassault Falcon Jet Corp (CANCELLED 2/7/2012) | Historical | 1982-10-18 |
| LRA 3430-505 | Drain Assembly | Dassault Falcon Jet Corp (CANCELLED 2/7/2012) | Historical | 1982-10-18 |
| LRA 3430-9 | Drain cover | Dassault Falcon Jet Corp (CANCELLED 2/7/2012) | Historical | 1982-10-18 |
| M06-200001 | Label | Miraj Corporation | Current | 2024-02-15 |
| M06-201100 | Label | Miraj Corporation | Current | 2024-10-09 |
| M145052-00 | O-Ring | Ametek Ameron, LLC d/b/a Mass Systems | Current | 2010-07-25 |
| M145052-00 | O-Ring | Mass Systems Inc | Current | 2008-01-27 |
| M147037 | Gasket | Ametek Ameron, LLC d/b/a Mass Systems | Current | 2010-07-25 |
| M147037 | Gasket | Mass Systems Inc | Current | 2007-03-18 |
| M202331 | O-Ring | Ametek Ameron, LLC d/b/a Mass Systems | Current | 2010-07-25 |
| M202331 | O-ring | Mass Systems Inc | Current | 2007-10-03 |
| M2040AC-2 | Ball Bearing | Miraj Corporation | Current | 2013-01-16 |
| M2725-709 | Pressure Gauge 0-1.5K psig | Mass Systems Inc | Current | 2007-03-18 |
| M3923 | Fire Extinguisher Fluid | Ametek Ameron, LLC d/b/a Mass Systems | Current | 2020-08-15 |
| M447966 | Harness Block | Ametek Ameron LLC d/b/a Mass Systems | Current | 2025-04-07 |
| M7500151 | Brush Electrical Contact | Miraj Corporation | Current | 2004-09-20 |
| M802297 | Syphon Tube- Strainer Assembly | Ametek Ameron, LLC d/b/a Mass Systems | Current | 2020-02-11 |
| M811456 | Fire Extinguisher | Mass Systems Inc | Current | 2002-08-25 |
| M811B | Digital Clock | Davtron Inc | Current | 1997-09-29 |
| M850-5V-D | Clock, Digital | Davtron Inc | Historical | 2001-04-04 |
| M861375 | Cartridge | Ametek Ameron, LLC d/b/a Mass Systems | Current | 2010-07-25 |