| PartNumber | MS3451L18-9B | MS3451L18-9S | MS3451L18-9P |
| Description | Circular MIL Spec Connector RECEPT | Circular MIL Spec Connector 5015 RR 2#12 5#16 SKT RECPT | Circular MIL Spec Connector 5015 RR 2#12 5#16 PIN RECP |
| Manufacturer | Amphenol | Amphenol | Amphenol |
| Product Category | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| Number of Positions | 7 Position | 7 Position | 7 Position |
| Insert Arrangement | 18-9 | 18-9 | 18-9 |
| Contact Gender | Without Socket Contacts | Socket (Female) | Pin (Male) |
| MIL Type | MIL-DTL-5015 | MIL-DTL-5015 | MIL-DTL-5015 |
| Product | Receptacles | Receptacles | Receptacles |
| Shell Size | 18 | 18 | 18 |
| Shell Style | In-Line | In-Line | In-Line |
| Series | Matrix | Matrix 5015 | Matrix 5015 |
| Packaging | Bulk | - | - |
| Brand | Amphenol Aerospace | Amphenol Aerospace | Amphenol Aerospace |
| Shell Plating | Electroless Nickel | Electroless Nickel | Electroless Nickel |
| Mating Style | Threaded | Threaded | Threaded |
| Product Type | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| Shell Material | Aluminum | Aluminum | Aluminum |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Circular Connectors | Circular Connectors | Circular Connectors |
| Part # Aliases | 3451L189B | 3451L189S | 3451L189P |
| Tradename | - | 5015 | 5015 |