| PartNumber | D38999/20MD35SA | D38999/20MD35SB | D38999/20MD35SB-LC |
| Description | Circular MIL Spec Connector 37P RCPT SZ 15 SKT WL MNT | Circular MIL Spec Connector 37P WL mnt soc sz 15 | Circular MIL Spec Connector 37P SZ 15 WALL MOUNT SOCKET RECEPTACLE |
| Manufacturer | Amphenol | Amphenol | Amphenol |
| Product Category | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| RoHS | Y | Y | Y |
| Number of Positions | 37 Position | 37 Position | 37 Position |
| Insert Arrangement | 15 - 35 | 15 - 35 | 15-35 |
| Contact Gender | Socket (Female) | Socket (Female) | Without Socket Contacts |
| MIL Type | MIL-DTL-38999 III | MIL-DTL-38999 III | MIL-DTL-38999 III |
| Product | Receptacles | Receptacles | Receptacles |
| Shell Size | 15 | 15 | 15 |
| Shell Style | Wall Mount | Wall Mount | Wall Mount |
| Mounting Style | Panel | Panel | Panel |
| Termination Style | Crimp | Crimp | - |
| Current Rating | 5 A | 5 A | 5 A |
| Contact Plating | Gold | Gold | - |
| Contact Material | Copper Alloy | Copper Alloy | - |
| Series | D38999 III | D38999 III | D38999 III |
| Mounting Angle | Straight | Straight | Straight |
| Brand | Amphenol Aerospace | Amphenol Aerospace | Amphenol Aerospace |
| Shell Plating | Nickel | Nickel | Electroless Nickel |
| Mating Style | Self Locking | Self Locking | Self Locking |
| Product Type | Circular MIL Spec Connector | Circular MIL Spec Connector | Circular MIL Spec Connector |
| Qualification | EREL | EREL | EREL |
| Shell Material | Composite | Composite | Aluminum |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Circular Connectors | Circular Connectors | Circular Connectors |
| Tradename | 38999 | 38999 | 38999 |
| Part # Aliases | 91-578864-35H | 91-578864-35J | 91-578894-35J |
| Unit Weight | 1.111677 oz | - | - |
| Packaging | - | Bulk | Bulk |