{"product_id":"harken-40mm-carbo-air-triple-swivel-block-part-2640","title":"Harken 40mm Carbo Air Triple Swivel Block, Part 2640","description":"\u003cp\u003e\u003cstrong\u003e40mm Carbo Air Triple Swivel Block\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLow-friction Carbo Air blocks are lightweight, strong, reliableand affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave  (mm)40 mm\u003c\/li\u003e\n\u003cli\u003eSheave  (in)1 9\/16 in\u003c\/li\u003e\n\u003cli\u003eMaximum line  (mm)10 mm\u003c\/li\u003e\n\u003cli\u003eMaximum line  (in)3\/8 in\u003c\/li\u003e\n\u003cli\u003eMaximum working load (kg)660 kg\u003c\/li\u003e\n\u003cli\u003eMaximum working load (lb)1455 lb\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lsl5xp ---\u003e\n\u003cp\u003e\u003cstrong\u003eHarken 40mm Carbo Air Triple Swivel Block\u003c\/strong\u003e is a compact, lightweight sailing block designed for reliable line handling and easy trimming. Part 2640 features three sheaves and a swivel configuration, making it a practical choice for sailors who need efficient control-line routing with a high working load in a small package.\u003c\/p\u003e\u003cp\u003eBuilt for marine applications, the Carbo Air block combines low-friction performance with a strong, lightweight design. Its compact form makes it suitable for sailing control systems where space and dependable operation matter. As part of Harken’s Carbo Air line and a companion to the Black Magic block family, this triple swivel block offers an affordable option for trimming and rigging applications that use line up to 3\/8 inch.\u003c\/p\u003e\u003cp\u003eThe 40mm sheaves support smooth line movement while the swivel design helps the block align with changing line direction. With a maximum working load of 1,455 pounds, the Harken 2640 is suited to a range of onboard sail-control and rigging setups when used within its specified limits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTriple swivel block:\u003c\/strong\u003e Three sheaves and a swivel configuration support versatile line routing for sailing and rigging systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-friction design:\u003c\/strong\u003e Helps provide smooth, easy trimming during line adjustment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight and compact:\u003c\/strong\u003e Offers a space-conscious solution for marine control applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh working load:\u003c\/strong\u003e Supports a maximum working load of 1,455 pounds for dependable use within rated limits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad line compatibility:\u003c\/strong\u003e Accommodates line up to 3\/8 inch.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eProduct Details:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Harken\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 2640\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e 40mm Carbo Air triple swivel block\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSheave size:\u003c\/strong\u003e 40mm (1 9\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum line size:\u003c\/strong\u003e 10mm (3\/8 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum working load:\u003c\/strong\u003e 660kg (1,455 pounds)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eChoose the Harken 40mm Carbo Air Triple Swivel Block for compact, low-friction line handling and reliable control in sailing and marine rigging applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSEO Meta Description:\u003c\/strong\u003e Shop the Harken 40mm Carbo Air Triple Swivel Block, Part 2640, with low-friction performance, triple sheaves, and a 1,455-pound working load.\u003c\/p\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eTruck Freight: No\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eOversized: No\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":44937129132121,"sku":"79736","price":144.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/1818\/2489\/files\/79736XL.jpg?v=1789839482","url":"https:\/\/www.marinepartsonly.com\/products\/harken-40mm-carbo-air-triple-swivel-block-part-2640","provider":"Marine Parts Only","version":"1.0","type":"link"}