| 503-24-8 | system interface unit | sikorsky aircraft corporation | — | 31 | Avionics / Electronics | OEM |
| 503-40 | aircraft config unit | sikorsky aircraft corporation | — | 20 | Consumables / Hardware | OEM |
| 5033-010 | breaker-bead | sikorsky aircraft corporation | — | — | Consumables / Hardware | OEM |
| 504-0033-924-20 | attitude indic | sikorsky aircraft corporation | — | 20 | Consumables / Hardware | OEM |
| 504266 | seal | sikorsky aircraft corporation | — | — | Consumables / Hardware | OEM |
| 50866-000 | xformer cur | sikorsky aircraft corporation | — | 24 | Electromechanical | OEM |
| 508863 | use 543051 | sikorsky aircraft corporation | — | — | Consumables / Hardware | OEM |
| 50A45-01-1-08N | rotary switc | sikorsky aircraft corporation | — | — | Electromechanical | OEM |
| 51-0313-1 | gasket | sikorsky aircraft corporation | — | 20 | Consumables / Hardware | OEM |
| 51-0329-1 | gasket | sikorsky aircraft corporation | — | 20 | Consumables / Hardware | OEM |
| 51-0373-1 | gasket | sikorsky aircraft corporation | — | 20 | Consumables / Hardware | OEM |
| 5100-108-120 | socket | sikorsky aircraft corporation | — | — | Consumables / Hardware | OEM |
| 5100-108-220 | socket | sikorsky aircraft corporation | — | — | Consumables / Hardware | OEM |
| 5100-18 | retainer | sikorsky aircraft corporation | | 20 | Consumables / Hardware | OEM |
| 510051-6 | antenna | sikorsky aircraft corporation | — | 23 | Avionics / Electronics | unknown |
| 51015-4 | plug | sikorsky aircraft corporation | — | 20 | Consumables / Hardware | OEM |
| 5103-25 | ring retaining | sikorsky aircraft corporation | — | — | Consumables / Hardware | OEM |
| 511431-3 | disc | sikorsky aircraft corporation | — | 72 | Engine Accessories | OEM |
| 511706-1 | hub cap | sikorsky aircraft corporation | — | 32 | Consumables / Hardware | OEM |
| 51176-10100 | placard | sikorsky aircraft corporation | — | 11 | Consumables / Hardware | OEM |
| 511820-7 | washer | sikorsky aircraft corporation | — | — | Consumables / Hardware | OEM |
| 511846-4 | washer | sikorsky aircraft corporation | — | 20 | Consumables / Hardware | OEM |
| 513237 | use s6112-23037-001 | sikorsky aircraft corporation | — | — | Consumables / Hardware | OEM |
| 5133-25 | ring retaining | sikorsky aircraft corporation | — | — | Consumables / Hardware | OEM |
| 51380 | use ms20073-03-04 | sikorsky aircraft corporation | — | — | Consumables / Hardware | OEM |
| 51476-57122 | aft facing divan instl w drawer ins... | sikorsky aircraft corporation | — | 25 | Interior / Furnishings | OEM |
| 51576-54928 | door post flashlight install | sikorsky aircraft corporation | — | 33 | Electromechanical | OEM |
| 5160-42-H | ring retaining | sikorsky aircraft corporation | — | — | Consumables / Hardware | OEM |
| 516500MRP | tester spring | sikorsky aircraft corporation | — | 20 | Consumables / Hardware | OEM |
| 51676-64619 | pallet install | sikorsky aircraft corporation | — | — | Structures | OEM |
| 51900-1 | fire extinguisher | sikorsky aircraft corporation | — | 26 | Safety / Emergency | OEM |
| 51976-20101 | extension mod ecu intake vent | sikorsky aircraft corporation | — | 21 | Pneumatics | OEM |
| 51976-51100 | aft facing bench seat drawer parts | sikorsky aircraft corporation | — | 25 | Interior / Furnishings | OEM |
| 52-01103-11 | filter element | sikorsky aircraft corporation | — | 29 | Hydraulics | OEM |
| 52-0505-2 | filter element | sikorsky aircraft corporation | — | 20 | Consumables / Hardware | OEM |
| 520-7600 | air medical system | sikorsky aircraft corporation | — | 25 | Interior / Furnishings | OEM |
| 5201-01 | aft cabin door hinges | sikorsky aircraft corporation | — | 52 | Structures | OEM |
| 5201-02 | aft cabin door hinges | sikorsky aircraft corporation | — | 52 | Structures | OEM |
| 5205718-1 | cable clamp | sikorsky aircraft corporation | — | 20 | Consumables / Hardware | OEM |
| 5205730-1 | cable clamp | sikorsky aircraft corporation | — | 20 | Consumables / Hardware | OEM |
| 522-3616-202 | nav control | sikorsky aircraft corporation | — | 34 | Avionics / Electronics | OEM |
| 522-4408-013 | vor-ils contr | sikorsky aircraft corporation | — | 34 | Avionics / Electronics | unknown |
| 52576-64916 | elt installation elta a06 | sikorsky aircraft corporation | — | 23 | Safety / Emergency | unknown |
| 52576-66131 | fm antenna install | sikorsky aircraft corporation | — | 23 | Avionics / Electronics | unknown |
| 526000A | scraper ring | sikorsky aircraft corporation | — | — | Consumables / Hardware | OEM |
| 526020-007 | dc cable | sikorsky aircraft corporation | — | 24 | Electromechanical | OEM |
| 5285-99-01 | bom kit 269c | sikorsky aircraft corporation | — | — | Consumables / Hardware | OEM |
| 5285-99-02 | bom kit 269c 1 | sikorsky aircraft corporation | — | — | Consumables / Hardware | OEM |
| 5285-99-03 | bom kit 269c 1 | sikorsky aircraft corporation | — | — | Consumables / Hardware | OEM |
| 52876-54902 | cabin ceiling ductwork installation | sikorsky aircraft corporation | — | 21 | Pneumatics | OEM |