| 20355AT-00, 20355AT-01 | Fuel Cell Assembly | Aero-Tech Services Inc | Historical | 1996-06-15 |
| 20355AT-01 | Fuel Cell Assembly | Aero-Tech Services Inc | Current | 2007-06-23 |
| 2037 | Gear Alert System | Aircraft Components Inc | Current | 2016-06-15 |
| 2040-1-2, 2040-1-3 | Voice Alert | Aircraft Components Inc | Historical | 2007-02-01 |
| 204788-000 | Transducer | Instrument Tech Corp. | Historical | 2006-03-06 |
| 204788-001 | Transducer | Instrument Tech Corp. | Current | 2006-03-06 |
| 204788-002 | Transducer | Instrument Tech Corp. | Current | 2006-03-06 |
| 204788-003 | Transducer | Instrument Tech Corp. | Historical | 2006-03-06 |
| 2051100 | Mount, Assy. | Raven Aviation LLC | Historical | 2013-03-26 |
| 2051100 | Mount, Assy. | Raven Aviation LLC | Historical | 2010-09-25 |
| 2051100 | Mount, Engine Assy. | Raven Aviation LLC | Historical | 2008-10-13 |
| 20672-00 | Rear window - left - outer | Aviation Enterprises | Current | 2001-09-15 |
| 20672-01 | Rear window - right - outer | Aviation Enterprises | Current | 2001-09-15 |
| 20676-03 | Left front pilot window - outer - original design | Aviation Enterprises | Current | 2001-09-15 |
| 20701-1 | Spacer | PTM International Inc | Current | 1999-12-12 |
| 20701-2 | Tubing Assembly | PTM International Inc | Current | 1999-12-12 |
| 20701-3 | Tubing Assembly | PTM International Inc | Current | 1999-12-12 |
| 2089-10 | Upper Safety Cable Assembly | F Atlee Dodge Aircraft Services LLC | Current | 2005-10-12 |
| 2089-10 | Upper Safety Cable Assembly | F Atlee Dodge Aircraft Svc | Current | 1995-03-08 |
| 2089-11 | Lower Safety Cable Assembly | F Atlee Dodge Aircraft Services LLC | Current | 2005-10-12 |
| 2089-11 | Lower Safety Cable Assembly | F Atlee Dodge Aircraft Svc | Current | 1995-03-08 |
| 2089-13 | Upper Safety Cable Assembly | F Atlee Dodge Aircraft Services LLC | Current | 2005-10-12 |
| 2089-13 | Upper Safety Cable Assembly | F Atlee Dodge Aircraft Svc | Current | 1995-03-08 |
| 2089-3 | Safety Cable Attachment Plate | F Atlee Dodge Aircraft Services LLC | Current | 2005-10-12 |
| 2089-3 | Safety Cable Attachment Plate | F Atlee Dodge Aircraft Svc | Current | 1995-03-08 |
| 2089-5 | Safety Cable Attachment Plate | F Atlee Dodge Aircraft Services LLC | Current | 2005-10-12 |
| 2089-5 | Safety Cable Attachment Plate | F Atlee Dodge Aircraft Svc | Current | 1995-03-08 |
| 2089-6 | Landing Gear Safety Cable Link | F Atlee Dodge Aircraft Services LLC | Current | 2005-10-12 |
| 2089-6 | Landing Gear Safety Cable Link | F Atlee Dodge Aircraft Svc | Current | 1995-03-08 |
| 20923-11 | Door window - right front - outer | Aviation Enterprises | Current | 2001-09-15 |
| 20ARM300-21C-3 | Tension Unit | Dayton Granger Inc | Current | 1993-12-26 |
| 20H Series | Dual Hydraulic Pump Kit | Sierra Industries, Ltd. | Current | 2006-06-21 |
| 21 Series | Positive Flap Retraction Kit | Sierra Industries, Ltd. | Current | 2006-06-21 |
| 21 Series | Positive Flap Retraction Kit | Sierra Industries, Ltd. | Current | 2006-06-21 |
| 2100 | Instrument Light Dimmer System | Tanis Aircraft Services | Historical | 1997-08-25 |
| 21027-00 | Vent window - use with LP-158 | Aviation Enterprises | Current | 2001-09-15 |
| 21027-00 | Vent window - use with 918 | Aviation Enterprises | Current | 2001-09-15 |
| 21027-00 | Vent window - use with LP-408 | Aviation Enterprises | Current | 2001-09-15 |
| 21027-04 | Vent window | Aviation Enterprises | Current | 2001-09-15 |
| 2103 | Extended Baggage Compartment | F Atlee Dodge Aircraft Services LLC | Current | 2019-12-18 |
| 210313 | Unfeathering Accumulator Kit | Aircraft Systems Inc | Current | 1992-04-05 |
| 210313 | PROPELLER UNFEATHERING ACCUMULATOR KITS | Woodward Inc | Current | 1972-11-28 |
| 210414 | Governor - CSSA | ONTIC Engineering & Manufacturing Inc | Current | 2007-05-13 |
| 210414 | Governor - CSSA | ONTIC Engineering & Manufacturing Inc | Historical | 2002-02-13 |
| 210416 | Governor - CSSA | ONTIC Engineering & Manufacturing Inc | Current | 2007-05-13 |
| 210416 | Governor - CSSA | ONTIC Engineering & Manufacturing Inc | Historical | 2002-02-13 |
| 210417 | Governor - CSSA | ONTIC Engineering & Manufacturing Inc | Current | 2007-05-13 |
| 210417 | Governor - CSSA | ONTIC Engineering & Manufacturing Inc | Historical | 2002-02-13 |
| 210418 | PROPELLER GOVERNORS | Woodward Inc | Current | 1972-11-28 |
| 210418 | Governor - CSSA | ONTIC Engineering & Manufacturing Inc | Current | 2007-05-13 |