| 41C440-7 | AIR SHUTOFF VALVE | — | — | 36 | Pneumatics | |
| 41SG118-1 | Pressure Switch | Eaton Aerospace | | 36 | Electromechanical | PMA |
| 41SG118-2 | Pressure Switch | Eaton Aerospace | | 36 | unknown | PMA |
| 41SG2651 | PRESSURE SENSOR | Eaton | | 36 | Instruments | OEM |
| 41SG287-1 | Pressure Switch | Eaton Aerospace | | 36 | unknown | PMA |
| 420 44 A-6BBB | shuttle valve | other | | 36 | Fuel Systems | OEM |
| 4201654 | VALVE | — | | 36 | unknown | OEM |
| 4201BK | Coupling | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 421495-1 | Actuator & Valve, Air Shut Off | Whittaker Controls Inc | — | 36 | Environmental / Cabin | PMA |
| 423615, 423615-1 | Valve, Sump Inductor | Whittaker Controls Inc | — | 36 | Environmental / Cabin | PMA |
| 424015 | Flow Sensor, Venturi Bleed Bias | Whittaker Controls Inc | — | 36 | Environmental / Cabin | PMA |
| 424025-2 | Valve, Press. Actuated Solenoid Shutoff | Meggitt (North Hollywood) Inc | — | 36 | Pneumatics | PMA |
| 424305-3 | Valve, Pressure Regulator Shutoff Valve (PRSOV) Pneumatic System | Meggitt (North Hollywood) Inc (CANCELLED) | — | 36 | Environmental / Cabin | PMA |
| 424315-5 | VALVE, PRESS ACTG REG BTFL SHUTOFF | Meggitt (North Hollywood) Inc | — | 36 | Pneumatics | PMA |
| 4249AA | Coupling | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 4266AA | Coupling | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 426V600 | Solenoid Bleed Override Valve | Honeywell | | 36 | Pneumatics | PMA |
| 4304DG-725 | Band Coupling Clamp | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 4304DG-750 | Band Coupling Clamp | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 43106AA200 | V-Band Coupling-High Temperature, High Profile | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 43106AF | Band Coupling Clamp | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 431CC-11 | air pump | other | — | 36 | Pneumatics | OEM |
| 431CC-7C | air pump | other | — | 36 | Pneumatics | OEM |
| 43283AB1000E | Clamp, Coupling, V-Band, 700 F 21-6-9 Cress, Low Profile | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 43283AB125E | Clamp, Coupling, V-Band, 700 F 21-6-9 Cress, Low Profile | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 43283AB150E | Clamp, Coupling, V-Band, 700 F 21-6-9 Cress, Low Profile | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 43283AB175E | Clamp, Coupling, V-Band, 700 F 21-6-9 Cress, Low Profile | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 43283AB200E | Clamp, Coupling, V-Band, 700 F 21-6-9 Cress, Low Profile | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 43283AB250E | Clamp, Coupling, V-Band, 700 F 21-6-9 Cress, Low Profile | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 43283AB275E | Clamp, Coupling, V-Band, 700 F 21-6-9 Cress, Low Profile | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 43283AB300E | Clamp, Coupling, V-Band, 700 F 21-6-9 Cress, Low Profile | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 43283AB350E | Clamp, Coupling, V-Band, 700 F 21-6-9 Cress, Low Profile | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 43283AB400E | Clamp, Coupling, V-Band, 700 F 21-6-9 Cress, Low Profile | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 43283AB450E | Clamp, Coupling, V-Band, 700 F 21-6-9 Cress, Low Profile | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 43283AB600E | Clamp, Coupling, V-Band, 700 F 21-6-9 Cress, Low Profile | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 43283AB700E | Clamp, Coupling, V-Band, 700 F 21-6-9 Cress, Low Profile | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 43283AB800E | Clamp, Coupling, V-Band, 700 F 21-6-9 Cress, Low Profile | National Utilities Company/NUCO | — | 36 | Pneumatics | PMA |
| 432CW-10 | air pump | other | — | 36 | Pneumatics | OEM |
| 432CW-6 | air pump | other | — | 36 | Pneumatics | OEM |
| 4353C000 | PRECOOLER | — | | 36 | unknown | |
| 436464 | DUCT | GE | | 36 | Engine Accessories | OEM |
| 4373AK | Coupling | National Utilities Company/NUCO | | 36 | Pneumatics | PMA |
| 438293 | pneumatic assy replacing 4443 | zodiac aerospace | — | 36 | Pneumatics | OEM |
| 440027-4 | manifold | zodiac aerospace | — | 36 | Pneumatics | unknown |
| 441-42633-002 | Panel, Insc Illum - Pneumatic, Assy | Sagem Avionics LLC | — | 36 | Avionics / Electronics | PMA |
| 441683-1 | Variable Geometry | Honeywell | — | 36 | Pneumatics | PMA |
| 441860 | Hydro-mechanical Unit | Honeywell | — | 36 | Pneumatics | PMA |
| 441901-l | Start Bleed Valve | Honeywell | — | 36 | Pneumatics | PMA |
| 442374 | Fuel Control | Honeywell | — | 36 | Pneumatics | PMA |
| 442CW-18 | overhauled dry air pump | other | — | 36 | Pneumatics | OEM |