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| PartNumber | MS27472T22B55SB | MS27472T22B55S | MS27472T22B55SA |
| 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 | 55 Position | 55 Position | 55 Position |
| Insert Arrangement | 22-55 | 22-55 | 22-55 |
| Contact Gender | Socket (Female) | Socket (Female) | Socket (Female) |
| MIL Type | MIL-DTL-38999 II | MIL-DTL-38999 II | MIL-DTL-38999 II |
| Product | Receptacles | Receptacles | Receptacles |
| Shell Size | 22 | 22 | 22 |
| Shell Style | Wall Mount | Wall Mount | Wall Mount |
| Series | MS 38999 II | JT | MS 38999 II |
| Brand | Amphenol Aerospace | Amphenol Aerospace | Amphenol Aerospace |
| Shell Plating | Olive Drab Cadmium | Olive Drab Cadmium | Olive Drab Cadmium |
| Product Type | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Circular Connectors | Circular Connectors | Circular Connectors |
| Tradename | 38999 | - | 38999 |
| Part # Aliases | 88-443208-55T | 88-443208-55S | 88-443208-55F |
| Termination Style | - | Crimp | - |
| Qualification | - | EREL | - |