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| PartNumber | D38999/20FJ43SB | D38999/20FJ43SA | D38999/20FJ43SALC |
| Description | Circular MIL Spec Connector 43C 23#20 20#16 | Circular MIL Spec Connector 43P Sz 25 Wall Mount Recpt Socket Cont | Circular MIL Spec Connector |
| Manufacturer | TE Connectivity | Souriau | Amphenol |
| Product Category | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| RoHS | Y | - | - |
| Number of Positions | 43 Position | 43 Position | - |
| Insert Arrangement | 25 - 43 | 25 - 43 | - |
| 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 | 25 | 25 | - |
| Shell Style | Wall Mount | Wall Mount | - |
| Mounting Style | Panel | Panel | - |
| Termination Style | Crimp | Crimp | - |
| Current Rating | 7.5 A, 13 A | 7.5 A, 13 A | - |
| Series | D38999 Series III | D38999 | D38999 III |
| Brand | TE Connectivity / DEUTSCH | Souriau | Amphenol Aerospace |
| Shell Plating | Nickel | Nickel | - |
| Product Type | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| Shell Material | Aluminum | Aluminum | - |
| Factory Pack Quantity | 1 | - | - |
| Subcategory | Circular Connectors | Circular Connectors | Circular Connectors |
| Tradename | D38999 | - | 38999 |
| Unit Weight | 0.035274 oz | 3.279350 oz | - |
| Contact Plating | - | Gold | - |
| Contact Material | - | Copper Alloy | - |
| Voltage Rating | - | 1.8 kV | - |
| Mating Style | - | Bayonet | - |