| PartNumber | MS3451L20-15B | MS3451L20-15A | MS3451L20-15P |
| Description | Circular MIL Spec Connector RECEPT | Circular MIL Spec Connector RECEPT | Circular MIL Spec Connector 7P MS Series MIL-DTL-5015 |
| 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 | 20-15 | 20-15 | 20-15 |
| Contact Gender | Without Socket Contacts | Without Pin Contacts | Pin (Male) |
| MIL Type | MIL-DTL-5015 | MIL-DTL-5015 | MIL-DTL-5015 |
| Product | Receptacles | Receptacles | Receptacles |
| Shell Size | 20 | 20 | 20 |
| Shell Style | In-Line | In-Line | In-Line |
| Series | Matrix | Matrix | Matrix 5015 |
| Packaging | Bulk | 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 | 3451L2015B | 3451L2015A | 3451L2015P |
| RoHS | - | - | N |
| Tradename | - | - | 5015 |