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| PartNumber | D38999/24FH53SA-LC | D38999/24FH53SB | D38999/24FH53SA |
| Description | Circular MIL Spec Connector TV 53C 53#20 SKT J/N RECP | Circular MIL Spec Connector DTS 53C 53#20 | Circular MIL Spec Connector 53P socket recpt |
| Manufacturer | Amphenol | TE Connectivity | Amphenol |
| Product Category | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| Contact Gender | Without Socket Contacts | Socket (Female) | Socket (Female) |
| MIL Type | MIL-DTL-38999 III | MIL-DTL-38999 III | MIL-DTL-38999 III |
| Termination Style | - | Crimp | Crimp |
| Contact Plating | - | - | Gold |
| Contact Material | - | - | Copper Alloy |
| Series | D38999 III | D38999 Series III | D38999 III |
| Brand | Amphenol Aerospace | TE Connectivity / DEUTSCH | Amphenol Aerospace |
| 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 | D38999 | 38999 |
| RoHS | - | Y | Y |
| Number of Positions | - | 53 Position | 53 Position |
| Insert Arrangement | - | 23 - 53 | 23 - 53 |
| Product | - | Receptacles | Receptacles |
| Shell Size | - | 23 | 23 |
| Shell Style | - | Jam Nut | Jam Nut |
| Mounting Style | - | Panel | Panel |
| Current Rating | - | 7.5 A | 7.5 A |
| Shell Plating | - | Nickel | Nickel |
| Shell Material | - | Aluminum | Aluminum |
| Unit Weight | - | 0.035274 oz | - |
| Mounting Angle | - | - | Straight |
| Mating Style | - | - | Self Locking |
| Qualification | - | - | EREL |
| Part # Aliases | - | - | 91-552068-53H |