| PartNumber | 66590-4 | 66590-1 | 66590-2 |
| Description | Standard Circular Contacts TYPE VI SKT 18-16 AU | Standard Circular Contacts SIGNAL SKT CNT 18-16 tin size 16 | Pin & Socket Connectors TYPE VI SOCKET |
| Manufacturer | TE Connectivity | TE Connectivity | TE Connectivity AMP Connectors |
| Product Category | Standard Circular Contacts | Standard Circular Contacts | Contacts - Multi Purpose |
| RoHS | Y | Y | - |
| Contact Gender | Socket (Female) | Socket (Female) | - |
| Current Rating | 13 A | 13 A | - |
| Termination Style | Crimp | - | - |
| Contact Plating | Gold | Tin | - |
| Series | Multimate Type VI | Multimate Type VI | Multimate VI |
| Product | Contacts | Contacts | - |
| Brand | TE Connectivity / AMP | TE Connectivity | - |
| Contact Material | Brass | - | - |
| Product Type | Standard Circular Contacts | Standard Circular Contacts | - |
| Factory Pack Quantity | 1500 | 1500 | - |
| Subcategory | Circular Connectors | Circular Connectors | - |
| Tradename | Multimate | Multimate | - |
| Part # Aliases | 66590-4 | 66590-1 | - |
| Packaging | - | Bulk | Bulk Alternate Packaging |
| Unit Weight | - | 0.014074 oz | - |
| Material | - | - | Brass |
| Type | - | - | Stamped |
| Pin or Socket | - | - | Socket |
| Contact Termination | - | - | Crimp |
| Wire Gauge | - | - | 16-18 AWG |
| Plating | - | - | Gold |
| Plating Thickness | - | - | 30μin (0.76μm) |