| Sikorsky Aircraft Corporation | The Timken Company |
| Part No | Manufacturer | Part Type | NSN | QTY | RFQ |
|---|---|---|---|---|---|
| L521910-2-253 | the timken company | cup, tapered roller bearing | 3110-00-894-0476 | Avl | RFQ |
| SB3404B1 | sikorsky aircraft corporation | cup, tapered roller bearing | 3110-00-894-0476 | Avl | RFQ |