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| PartNumber | MS3451L20-22S | MS3451L20-21P | MS3451L20-22B |
| Description | Circular MIL Spec Connector RECEPT | Circular MIL Spec Connector RECEPT | Circular MIL Spec Connector RECEPT |
| Manufacturer | Amphenol | Amphenol | Amphenol |
| Product Category | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| Number of Positions | 6 Position | 9 Position | 6 Position |
| Insert Arrangement | 20-22 | 20-21 | 20-22 |
| Contact Gender | Socket (Female) | Pin (Male) | Without Socket Contacts |
| 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 5015 | Matrix | Matrix |
| 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 |
| Tradename | 5015 | - | - |
| Part # Aliases | 3451L2022S | 3451L2021P | 3451L2022B |
| Packaging | - | Bulk | Bulk |