ID
1360745
$ 125.19
1-2 weeks delivery time
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The Barton N05331 is a Size 5 triple swivel block with becket and three 54 mm plain bearing sheaves, designed for ropes up to 12 mm. Weighing 409 g, it is optimized for high static loads with a safe working load of 750 kg and break load of 1500 kg, making it ideal for heavy-duty multi-purchase systems requiring rotation and secure rope termination.
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Barton N05331 – Triple Swivel Block with Becket Size 5 54mm, Plain Bearing, 3x Ø54mm Sheaves, Max Rope 12mm
The Barton N05331 Triple Swivel Block with Becket is part of the heavy-duty Size 5 (54 mm) range, engineered for strength and durability in demanding marine environments. Featuring three plain bearing sheaves, this block is optimized for high static load applications and provides increased mechanical advantage in multi-purchase systems.
The swivel attachment allows full rotation under load, maintaining optimal alignment and reducing line twist, while the integrated becket provides a secure point for rope termination. Constructed with marine-grade 316 stainless steel load components and reinforced moulded side plates, the block is through-bolted and riveted for maximum structural integrity.
Key Features
- Triple sheave block with swivel and integrated becket
- Plain bearing system optimized for high-load applications
- Provides increased mechanical advantage in multi-purchase systems
- Free rotation under load for optimal alignment
- Integrated becket for rope termination
- Heavy-duty construction with stainless steel internal frame
- Through-bolted and riveted side plates for superior strength
- Weight – 409 g
Technical Specifications
Part Number N05331 Block Type Triple Swivel + Becket Size Size 5 (54 mm) Sheave Diameter 3 × 54 mm x 17 mm (2 1/8" x 5/8") Bearing Type Plain Bearing Number of Sheaves Triple Max Rope Diameter 12 mm (7/16") Safe Working Load (SWL) 750 kg (1650 lbs) Break Load 1500 kg (3300 lbs) Weight 409 g Dimensions 150 × 83 × 58 mm
Applications
- High mechanical advantage multi-purchase systems with rope termination
- Mainsheet and traveller systems
- Heavy-duty control line setups
- Cruising and racing yachts
- Applications requiring rotation and alignment under load
The Barton Size 4/5 block range is designed for small to medium cruising yachts up to 10 m, offering robust construction, 316 stainless steel load components, and reliable high-load performance. :contentReference[oaicite:0]{index=0}
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