{"product_id":"harken-29mm-carbo-air-block-with-swivel-part-340","title":"Harken 29mm Carbo Air Block with Swivel, Part 340","description":"\u003cp\u003e\u003cstrong\u003e29mm Carbo Air Block with Swivel\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\u003cbr\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave: 29mm \/ 1-1\/8in\u003c\/li\u003e\n\u003cli\u003eLength: 66mm \/ 2-5\/8in\u003c\/li\u003e\n\u003cli\u003eWeight: 26g \/ .9oz\u003c\/li\u003e\n\u003cli\u003eShackle pin: 4mm \/ 5\/32in\u003c\/li\u003e\n\u003cli\u003eMaximum line: 8mm \/ 5\/16in\u003c\/li\u003e\n\u003cli\u003eMaximum working load: 150kg \/ 330lb\u003c\/li\u003e\n\u003cli\u003eBreaking load: 454kg \/ 1000lb\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lsl5xp ---\u003e\n\u003cp\u003e\u003cstrong\u003eHarken 29mm Carbo Air Block with Swivel\u003c\/strong\u003e is a compact, lightweight sailing block designed for reliable line handling and easy trimming. Part 340 features a low-friction sheave and swivel configuration that helps sailors manage control lines efficiently on dinghies, small sailboats, and other applications requiring a compact block with a strong working load.\u003c\/p\u003e\u003cp\u003eAs part of the Harken Carbo Air block line, this block combines lightweight construction with dependable strength for everyday sailing use. Its compact profile makes it practical where space and weight matter, while the swivel allows the block to align with changing line angles during trimming. It accommodates line up to 5\/16 inch and supports a maximum working load of 330 pounds, making it suitable for a range of small-boat rigging and control-line applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-friction sheave:\u003c\/strong\u003e Helps provide smooth line movement for easier trimming and control-line handling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwivel configuration:\u003c\/strong\u003e Allows the block to orient with the line for flexible rigging and changing pull angles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight design:\u003c\/strong\u003e Weighs just 0.9 ounces, helping reduce added weight in compact sailing systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh working load:\u003c\/strong\u003e Handles loads up to 330 pounds for dependable small-boat rigging performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact sailing block:\u003c\/strong\u003e Designed for applications where efficient line handling and limited installation space are important.\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 340\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlock type:\u003c\/strong\u003e Carbo Air block with swivel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSheave:\u003c\/strong\u003e 29mm \/ 1-1\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.9 ounce\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShackle pin:\u003c\/strong\u003e 5\/32 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum line size:\u003c\/strong\u003e 5\/16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum working load:\u003c\/strong\u003e 330 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreaking load:\u003c\/strong\u003e 1,000 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eChoose the Harken 29mm Carbo Air Block with Swivel for compact, low-friction line handling backed by clearly defined load ratings and Harken sailing hardware expertise.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSEO Meta Description:\u003c\/strong\u003e Shop the Harken 29mm Carbo Air Block with Swivel, Part 340, a lightweight low-friction sailing block rated for lines up to 5\/16 inch.\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":44937132572761,"sku":"79079","price":44.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/1818\/2489\/files\/79079XL.jpg?v=1789839704","url":"https:\/\/www.marinepartsonly.com\/products\/harken-29mm-carbo-air-block-with-swivel-part-340","provider":"Marine Parts Only","version":"1.0","type":"link"}