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$431.95
(List Price: $490.45)
Our Part #: HAR3243 | Mfr. Part #: 3243
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| Description | Imperial | Metric |
|---|---|---|
| Sheave | 2 15/16 in. | 75.00 mm. |
| Length | 5 1/8 in. | 129.00 mm. |
| Weight | 11.82 oz. | 335.00 g. |
| Maximum line | 9/16 in. | 14.00 mm. |
| Maximum working load | 3000.00 lb. | 1361.00 kg. |
| Breaking load | 6000.00 lb. | 2722.00 kg. |
| Shackle pin | 5/16 in. | 8.00 mm. |
Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. A center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep line from twisting.
The low-load block has a red isolator. It uses Delrin® ball bearings, with a 17-4 PH stainless headpost and 316 stainless steel shackles.
Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Our Part # HAR3243 | Harken Part # 3243