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| PartNumber | MS27508E18F53PLC | MS27508E18F53P | MS27508E18F53PB |
| Description | Circular MIL Spec Connector Connectors, Interconnects - CONN HSG RCPT 53POS BOX MNT PINS - Circular - Housings | Circular MIL Spec Connector 53P 18 SIZE BOX MOUNT RECEPTACLE PIN | 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 | 53 Position | 53 Position | 53 Position |
| Insert Arrangement | 18-53 | 18-53 | 18-53 |
| Contact Gender | Pin (Male) | Pin (Male) | Pin (Male) |
| MIL Type | MIL-DTL-38999 II | MIL-DTL-38999 II | MIL-DTL-38999 II |
| Product | Receptacles | Receptacles | Receptacles |
| Shell Size | 18 | 18 | 18 |
| Shell Style | Box Mount | Box Mount | Box Mount |
| Series | JT | MS 38999 II | MS 38999 II |
| Packaging | Bulk | - | - |
| Brand | Amphenol Aerospace | Amphenol Aerospace | Amphenol Aerospace |
| Shell Plating | Passivated Steel | Passivated Steel | Passivated Steel |
| Product Type | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Circular Connectors | Circular Connectors | Circular Connectors |
| RoHS | - | N | - |
| Mounting Style | - | Panel | - |
| Termination Style | - | Crimp | - |
| Current Rating | - | 5 A | - |
| Contact Plating | - | Gold | - |
| Mounting Angle | - | Straight | - |
| Voltage Rating | - | 500 V | - |
| Qualification | - | EREL | - |
| Tradename | - | 38999 | 38999 |
| Wire Gauge | - | 22 | - |
| Part # Aliases | - | 91-542006-53P | 91-542006-53R |