| PartNumber | 66577-4 | 66577-1 | 66577-2 |
| Description | Standard Circular Contacts TYPE VI PIN MULTI-MATE | Standard Circular Contacts TYPE VI PIN CONT M-MATE REF | Standard Circular Contacts TYPE VI PIN CONT MULTI-MATE |
| Manufacturer | TE Connectivity | TE Connectivity | TE Connectivity |
| Product Category | Standard Circular Contacts | Standard Circular Contacts | Standard Circular Contacts |
| RoHS | N | Y | Y |
| Series | Multimate Type VI | Multimate Type III+ | Multimate Type VI |
| Packaging | Reel | Reel | - |
| Brand | TE Connectivity / AMP | TE Connectivity / AMP | TE Connectivity / AMP |
| Product Type | Standard Circular Contacts | Standard Circular Contacts | Standard Circular Contacts |
| Factory Pack Quantity | 4000 | 5200 | 5000 |
| Subcategory | Circular Connectors | Circular Connectors | Circular Connectors |
| Tradename | Multimate | Multimate | Multimate |
| Part # Aliases | 66577-4 | 66577-1 | 66577-2 |