| M446754 | Cartridge | Ametek Ameron LLC d/b/a Mass Systems | | 35 | Safety / Emergency | PMA |
| M446788 | Rupture Disc | Ametek Ameron LLC d/b/a Mass Systems | | 72 | Engine Accessories | PMA |
| M447883 | Valve | Ametek Ameron LLC d/b/a Mass Systems | | 35 | Safety / Emergency | PMA |
| M447966 | Harness Block | Ametek Ameron LLC d/b/a Mass Systems | | 35 | Safety / Emergency | PMA |
| M448621 | Oxygen Hose | Ametek Ameron LLC d/b/a Mass Systems | | 35 | Safety / Emergency | PMA |
| M449009 | Window Assembly | Ametek Ameron LLC d/b/a Mass Systems | | 35 | Safety / Emergency | PMA |
| M449189 | Valve | Ametek Ameron LLC d/b/a Mass Systems | | 76 | Engine Accessories | PMA |
| M449687 | RADIO CORD ASSEMBLY | Ametek Ameron LLC d/b/a Mass Systems | | 25 | Interior / Furnishings | PMA |
| M451699 | COVER PLATE | Ametek Ameron LLC d/b/a Mass Systems | | 25 | Interior / Furnishings | PMA |
| M451701 | Cover Plate | Ametek Ameron LLC d/b/a Mass Systems | | 25 | Interior / Furnishings | PMA |
| M451714 | ASSEMBLY, COVER PLATE | Ametek Ameron LLC d/b/a Mass Systems | | 25 | Interior / Furnishings | PMA |
| M451720 | Main Casing Assembly | Ametek Ameron LLC d/b/a Mass Systems | | 25 | Interior / Furnishings | PMA |
| M452830 | Stowage Door, Left Hand | Ametek Ameron LLC d/b/a Mass Systems | | 25 | Interior / Furnishings | PMA |
| M472001-01 | Cartridge | Ametek Ameron LLC d/b/a Mass Systems | | 26 | Safety / Emergency | PMA |
| M48000306-1 | Cutter Cartridge | Ametek Ameron LLC d/b/a Mass Systems | | 24 | Electromechanical | PMA |
| M5032-01 | Diaphragm | Ametek Ameron LLC d/b/a Mass Systems | | 25 | Interior / Furnishings | PMA |
| M5056-00 | Plate, Identification | Ametek Ameron LLC d/b/a Mass Systems | | 25 | Interior / Furnishings | PMA |
| M50740-01 | PACKING | Ametek Ameron LLC d/b/a Mass Systems | — | 21 | Environmental / Cabin | PMA |
| M50740-02 | O-Ring | Ametek Ameron LLC d/b/a Mass Systems | — | — | Unknown | PMA |
| M50740-03 | O-Ring | Ametek Ameron LLC d/b/a Mass Systems | — | — | Unknown | PMA |
| M50740-04 | Packing, Preformed | Ametek Ameron LLC d/b/a Mass Systems | | 20 | Consumables / Hardware | PMA |
| M50740-05 | O-Ring | Ametek Ameron LLC d/b/a Mass Systems | — | — | Unknown | PMA |
| M52100146-1 | Safety Relief Fill Fitting | Ametek Ameron LLC d/b/a Mass Systems | | 35 | Safety / Emergency | PMA |
| M52100162-2 | Filter Fitting | Ametek Ameron LLC d/b/a Mass Systems | | 35 | Safety / Emergency | PMA |
| M52300010-1 | Rupture Disc | Ametek Ameron LLC d/b/a Mass Systems | | 72 | Engine Accessories | PMA |
| M52400001-1 | Safety Relief Fill Fitting | Ametek Ameron LLC d/b/a Mass Systems | | 35 | Environmental / Cabin | PMA |
| M52400014-1 | Fill Fitting | Ametek Ameron LLC d/b/a Mass Systems | | 35 | Safety / Emergency | PMA |
| M52400018-1 | Fill Fitting | Ametek Ameron LLC d/b/a Mass Systems | | 32 | Landing Gear | PMA |
| M53040079-1 | Cylinder Weldment | Ametek Ameron LLC d/b/a Mass Systems | | 25 | Interior / Furnishings | PMA |
| M53100578-1 | Shim | Ametek Ameron LLC d/b/a Mass Systems | — | 20 | Consumables / Hardware | PMA |
| M53100578-2 | Shim | Ametek Ameron LLC d/b/a Mass Systems | — | 32 | Landing Gear | PMA |
| M53100578-3 | Shim, .040 inch | Ametek Ameron LLC d/b/a Mass Systems | | 20 | Consumables / Hardware | PMA |
| M53100578-5 | Shim, .007 inch | Ametek Ameron LLC d/b/a Mass Systems | | 25 | Interior / Furnishings | PMA |
| M53100578-6 | Shim | Ametek Ameron LLC d/b/a Mass Systems | — | 32 | Landing Gear | PMA |
| M53100714-1 | Shim, .020 Inch | Ametek Ameron LLC d/b/a Mass Systems | | — | Unknown | PMA |
| M53100714-2 | Shim, .030 inch | Ametek Ameron LLC d/b/a Mass Systems | | — | Unknown | PMA |
| M53100714-3 | Shim, .050 inch | Ametek Ameron LLC d/b/a Mass Systems | | — | Unknown | PMA |
| M53100715-1 | Shim | Ametek Ameron LLC d/b/a Mass Systems | — | — | Unknown | PMA |
| M5517-00 | Seat, PTFE | Ametek Ameron LLC d/b/a Mass Systems | | 25 | Interior / Furnishings | PMA |
| M5522-00 | Filter | Ametek Ameron LLC d/b/a Mass Systems | | 25 | Interior / Furnishings | PMA |
| M553008 | Gasket | Ametek Ameron LLC d/b/a Mass Systems | | 25 | Consumables / Hardware | PMA |
| M553044 | Seal | Ametek Ameron LLC d/b/a Mass Systems | | 25 | Interior / Furnishings | PMA |
| M555012 | Valve | Ametek Ameron LLC d/b/a Mass Systems | | 76 | Engine Accessories | PMA |
| M555015 | Diaphragm | Ametek Ameron LLC d/b/a Mass Systems | | 35 | Safety / Emergency | PMA |
| M555016 | Main Valve | Ametek Ameron LLC d/b/a Mass Systems | | 35 | Safety / Emergency | PMA |
| M555033 | Valve | Ametek Ameron LLC d/b/a Mass Systems | | 38 | Environmental / Cabin | PMA |
| M555070 | Valve | Ametek Ameron LLC d/b/a Mass Systems | | 76 | Engine Accessories | PMA |
| M555153 | Combined Diaphragm | Ametek Ameron LLC d/b/a Mass Systems | | 35 | Safety / Emergency | PMA |
| M55620-01 | Packing, Preformed | Ametek Ameron LLC d/b/a Mass Systems | | 20 | Consumables / Hardware | PMA |
| M55620-02 | Packing, Preformed | Ametek Ameron LLC d/b/a Mass Systems | | 20 | Consumables / Hardware | PMA |