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| PartNumber | D38999/20JH53SA | D38999/20JH53SB | D38999/20JH53SA-LC |
| Description | Circular MIL Spec Connector 53P Sz 23 Wall Mount Recpt Socket Cont | Circular MIL Spec Connector CTV 53C 53#20 SKT RECP | Circular MIL Spec Connector 53P Size 20 Wall Mount Recept Socket |
| Manufacturer | Souriau | Amphenol | Amphenol |
| Product Category | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| RoHS | N | - | N |
| Number of Positions | 53 Position | 53 Position | - |
| Insert Arrangement | 23 - 53 | 23 - 53 | - |
| Contact Gender | Socket (Female) | Socket (Female) | Without Socket Contacts |
| MIL Type | MIL-DTL-38999 III | MIL-DTL-38999 III | MIL-DTL-38999 III |
| Product | Receptacles | Receptacles | - |
| Shell Size | 23 | 23 | - |
| Shell Style | Wall Mount | Wall Mount | - |
| Mounting Style | Panel | Panel | - |
| Termination Style | Crimp | Crimp | - |
| Current Rating | 7.5 A | 7.5 A | - |
| Contact Plating | Gold | - | - |
| Contact Material | Copper Alloy | - | - |
| Series | D38999 | D38999 III | D38999 III |
| Voltage Rating | 1.8 kV | - | - |
| Brand | Souriau | Amphenol Aerospace | Amphenol Aerospace |
| Shell Plating | Olive Drab Cadmium | Olive Drab Cadmium | - |
| Mating Style | Bayonet | - | - |
| Product Type | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| Shell Material | Composite | Composite | - |
| Subcategory | Circular Connectors | Circular Connectors | Circular Connectors |
| Unit Weight | 0.035274 oz | - | - |
| Factory Pack Quantity | - | 1 | 1 |
| Tradename | - | 38999 | 38999 |
| Part # Aliases | - | 88-578868-53J | 88-578898-53H |