| Name: | Black Diamond Airlock |
| Category: | screw lock |
| Locking Type: | manual |
| Locks: | screw |
| Unlock Style: | nose stopped |
| Sleeve Rotation: | 900° (unlocked) | 1305° (maximum) |
| Shape: | HMS |
| Material: | aluminum |
| Profile: | trapezoid |
| Nose: | notch & pin |
| Nose Guard: | none |
| Rivets: | domed |
| Gate Shield: | none |
| Weight: | 80 g |
| Dimensions: | Length: 108.2 mm Width: 72.2 mm Rope Bearing Depth: 11 mm Gate Opening: 21.5 mm |
| Strength Ratings: |  23 kN |  10 kN |
| Strength Gate Open: | 10 kN |
| Other Markings: | Forged: BLACK (c-diamond logo) DIAMOND(superscript dot) USA | (ratings) |
| Summary: | early s-spine HMS |
| Description & Commentary: |