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| PartNumber | D38999/20FH53SC | D38999/20FH53SB-LC | D38999/20FH53SB |
| Description | Circular MIL Spec Connector DTS 53C 53#20 SKT RECP | Circular MIL Spec Connector DTS 53C 53#20 SKT R ECP | Circular MIL Spec Connector DTS 53C 53#20 SKT R ECP |
| Manufacturer | TE Connectivity | TE Connectivity | TE Connectivity |
| Product Category | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| Number of Positions | 53 Position | 53 Position | 53 Position |
| Insert Arrangement | 23 - 53 | 23-53 | 23 - 53 |
| Contact Gender | Socket (Female) | Without Socket Contacts | Socket (Female) |
| MIL Type | MIL-DTL-38999 III | MIL-DTL-38999 III | MIL-DTL-38999 III |
| Product | Receptacles | Receptacles | Receptacles |
| Shell Size | 23 | 23 | 23 |
| Shell Style | Wall Mount | Wall Mount | Wall Mount |
| Mounting Style | Panel | Panel | Panel |
| Termination Style | Crimp | - | Crimp |
| Current Rating | 7.5 A | - | 7.5 A |
| Brand | TE Connectivity / DEUTSCH | TE Connectivity / DEUTSCH | TE Connectivity / DEUTSCH |
| Shell Plating | Nickel | Electroless Nickel | Nickel |
| Product Type | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| Shell Material | Aluminum | Aluminum | Aluminum |
| Subcategory | Circular Connectors | Circular Connectors | Circular Connectors |
| RoHS | - | Y | Y |
| Contact Plating | - | - | - |
| Contact Material | - | - | - |
| Series | - | D38999 Series III | D38999 Series III |
| Mounting Angle | - | Straight | - |
| Mating Style | - | Self Locking | - |
| Factory Pack Quantity | - | 1 | 1 |
| Tradename | - | D38999 | D38999 |
| Unit Weight | - | 0.035274 oz | 0.035274 oz |