| PartNumber | D38999/26FG75SN-LC | D38999/26FG75SN |
| Description | Circular MIL Spec Connector 4P Size 26 Straight Plug Socket | Circular MIL Spec Connector 4P SZ 21 PLUG CBL MNT SKT |
| Manufacturer | Amphenol | Amphenol |
| Product Category | Circular MIL Spec Connector | Circular MIL Spec Connector |
| RoHS | N | N |
| Number of Positions | 4 Position | 4 Position |
| Contact Gender | Without Socket Contacts | Socket (Female) |
| MIL Type | MIL-DTL-38999 III | MIL-DTL-38999 III |
| Product | Connectors | Plugs |
| Shell Size | 21 | 21 |
| Shell Style | Straight | Straight |
| Mounting Style | Cable | Free Hanging |
| Termination Style | - | Crimp |
| Contact Plating | - | Gold |
| Contact Material | - | Copper Alloy |
| Series | D38999 III | D38999 III |
| Mounting Angle | Straight | Straight |
| Brand | Amphenol Aerospace | Amphenol Aerospace |
| Product Type | Circular MIL Spec Connector | Circular MIL Spec Connector |
| Factory Pack Quantity | 1 | 1 |
| Subcategory | Circular Connectors | Circular Connectors |
| Tradename | 38999 | 38999 |
| Insert Arrangement | - | 21 - 75 |
| Current Rating | - | 46 A |
| Shell Plating | - | Nickel |
| Mating Style | - | Self Locking |
| Qualification | - | EREL |
| Shell Material | - | Aluminum |
| Unit Weight | - | 4.480005 oz |