| PartNumber | M85049/90-21W02 | M85049/90-21N02 | M85049/90-21N03 |
| Description | Circular MIL Spec Backshells Backshell | Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A NIC SZ 21 | Circular MIL Spec Backshells BACKSHELL BND LOCK ADPTR R/A NIC SZ 21 |
| Manufacturer | Sunbank | Amphenol | Amphenol |
| Product Category | Circular MIL Spec Backshells | Circular MIL Spec Backshells | Circular MIL Spec Backshells |
| MIL Type | MIL-DTL-38999 III, IV | MIL-DTL-38999 III, IV | MIL-DTL-38999 III, IV |
| Product | Band Lock Adapters | Band Lock Adapters | Band Lock Adapters |
| Shell Size | 21 | 21 | 21 |
| Shell Material | Aluminum Alloy | Aluminum Alloy | Aluminum Alloy |
| Mounting Angle | Right Angle | Right Angle | Right Angle |
| Brand | Sunbank / Souriau | Amphenol Pcd | Amphenol Pcd |
| Mating Style | Self Locking | Self Locking | Self Locking |
| Product Type | Circular MIL Spec Backshells | Circular MIL Spec Backshells | Circular MIL Spec Backshells |
| Factory Pack Quantity | 1 | 25 | 25 |
| Subcategory | Circular Connectors | Circular Connectors | Circular Connectors |
| RoHS | - | Y | Y |
| Series | - | AS85049 | AS85049 |
| Part # Aliases | - | A850499021N02 | A850499021N03 |
| Unit Weight | - | - | 2 oz |