| PartNumber | D38999/26WG75BB | D38999/26WG75BC | D38999/26WG75BA |
| Description | Circular MIL Spec Connector 4P SZ 21 CBL MNT SOC | Circular MIL Spec Connector 4P SZ 21 CBL MNT SOC | Circular MIL Spec Connector 4P Sz 21 Straight Plug Less Skt Cont |
| Manufacturer | Amphenol | Amphenol | Souriau |
| Product Category | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| RoHS | N | N | N |
| Number of Positions | 4 Position | 4 Position | 4 Position |
| Insert Arrangement | 21 - 75 | 21 - 75 | 21 - 75 |
| Contact Gender | Without Socket Contacts | Without Socket Contacts | Socket (Female) |
| MIL Type | MIL-DTL-38999 III | MIL-DTL-38999 III | MIL-DTL-38999 III |
| Product | Plugs | Plugs | Plugs |
| Shell Size | 21 | 21 | 21 |
| Shell Style | Straight | Straight | Straight |
| Mounting Style | Free Hanging | Free Hanging | Free Hanging |
| Termination Style | Crimp | Crimp | Crimp |
| Current Rating | 46 A | 46 A | 46 A |
| Contact Plating | Gold | Gold | Gold |
| Contact Material | Copper Alloy | Copper Alloy | Copper Alloy |
| Series | D38999 III | D38999 III | D38999 |
| Mounting Angle | Straight | Straight | Straight |
| Brand | Amphenol Aerospace | Amphenol Aerospace | Souriau |
| Shell Plating | Olive Drab Cadmium | Olive Drab Cadmium | Olive Drab Cadmium |
| Mating Style | Self Locking | Self Locking | Bayonet |
| Product Type | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| Qualification | EREL | EREL | - |
| Shell Material | Aluminum | Aluminum | Aluminum |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Circular Connectors | Circular Connectors | Circular Connectors |
| Tradename | 38999 | 38999 | - |
| Part # Aliases | 88-565867-ABJ | 88-565867-ABL | - |
| Unit Weight | - | 0.035274 oz | 0.035274 oz |
| Voltage Rating | - | - | 2.3 kV |