| PartNumber | MS3100A40-10S | MS3100A40-1P | MS3100A40-56P |
| Description | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| Manufacturer | Amphenol | Amphenol | Amphenol |
| Product Category | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| Number of Positions | 29 Position | 30 Position | 85 Position |
| Insert Arrangement | 40-10 | 40-1 | 40-56 |
| Contact Gender | Socket (Female) | Pin (Male) | Pin (Male) |
| MIL Type | MIL-DTL-5015 | MIL-DTL-5015 | MIL-DTL-5015 |
| Product | Receptacles | Receptacles | Receptacles |
| Shell Size | 40 | 40 | 40 |
| Shell Style | Wall Mount | Wall Mount | Wall Mount |
| Series | MS | MS | MS |
| Brand | Amphenol Industrial | Amphenol Industrial | Amphenol Industrial |
| Shell Plating | Olive Drab Chromate over Cadmium | Olive Drab Chromate over Cadmium | Olive Drab Chromate over Cadmium |
| Product Type | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| Subcategory | Circular Connectors | Circular Connectors | Circular Connectors |