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| PartNumber | D38999/24FH53SN-LC | D38999/24FH53SNLC | D38999/24FH53SN |
| Description | Circular MIL Spec Connector 53P SZ 23 RCPT PNL MNT SKT | Circular MIL Spec Connector | |
| Manufacturer | Amphenol | Amphenol | - |
| Product Category | Circular MIL Spec Connector | Circular MIL Spec Connector | - |
| RoHS | Y | - | - |
| Number of Positions | 53 Position | - | - |
| Insert Arrangement | 23-53 | - | - |
| Contact Gender | Without Socket Contacts | Without Socket Contacts | - |
| MIL Type | MIL-DTL-38999 III | MIL-DTL-38999 III | - |
| Product | Receptacles | - | - |
| Shell Size | 23 | - | - |
| Shell Style | Jam Nut | - | - |
| Mounting Style | Panel | - | - |
| Termination Style | - | - | - |
| Current Rating | 7.5 A | - | - |
| Contact Plating | - | - | - |
| Contact Material | - | - | - |
| Series | D38999 III | D38999 III | - |
| Mounting Angle | Straight | - | - |
| Brand | Amphenol Aerospace | Amphenol Aerospace | - |
| Shell Plating | Electroless Nickel | - | - |
| Mating Style | Self Locking | - | - |
| Product Type | Circular MIL Spec Connector | Circular MIL Spec Connector | - |
| Qualification | EREL | - | - |
| Shell Material | Aluminum | - | - |
| Factory Pack Quantity | 1 | - | - |
| Subcategory | Circular Connectors | Circular Connectors | - |
| Tradename | 38999 | 38999 | - |
| Part # Aliases | 91-553218-53S | - | - |