Barton N03431 - Fiddle Block Swivel with Becket Size 3 30/58mm – Plain Bearing, Ø30/58mm Sheaves, Max Rope 10mm

ID 1360717

$ 59.59

1-2 weeks delivery time

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The Barton N03431 is a Size 3 fiddle block with swivel shackle and becket, featuring plain bearing sheaves (30/58 mm) for ropes up to 10 mm. Weighing 154 g, it is designed for high static loads with a safe working load of 400 kg and break load of 800 kg. The swivel allows flexible alignment under load, while the becket enables secure rope termination, making it ideal for compact multi-purchase systems.

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Barton N03431 - Fiddle Block Swivel with Becket Size 3 30/58mm – Plain Bearing, Ø30/58mm Sheaves, Max Rope 10mm

The Barton N03431 Fiddle Block with Swivel and Becket is part of the Size 3 (45 mm) block range, designed for strength, versatility, and efficient load handling. It features a plain bearing fiddle sheave configuration (30/58 mm), optimized for higher static load applications.

Manufactured using 30% glass fibre reinforced nylon side plates and an internal stainless steel frame, this block ensures durability while maintaining low weight. The swivel shackle allows free rotation under load for optimal alignment, while the integrated becket enables rope termination in multi-purchase systems.

Key Features

Fiddle block configuration with 30 mm and 58 mm sheaves
Plain bearing sheaves for high load applications
Swivel shackle for flexible alignment and reduced line twist
Integrated becket for rope termination
Lightweight and durable construction – 154 g

Technical Specifications

Part Number	N03431
Block Type	Fiddle Swivel + Becket
Size	Size 3 (45 mm)
Sheave Diameter	30 mm / 58 mm
Sheave Size	30/58 × 13 mm (1 3/16" / 2 9/32" × 33/64")
Bearing Type	Plain Bearing
Number of Sheaves	Fiddle (Double)
Max Rope Diameter	10 mm (3/8")
Safe Working Load (SWL)	400 kg (881 lbs)
Break Load	800 kg (1763 lbs)
Weight	154 g
Dimensions	175 × 60 × 28 mm
Materials	30% glass fibre reinforced nylon cheeks, Acetal sheaves, stainless steel frame

Applications

Mainsheet and vang systems
Multi-purchase control systems
Control and trimming lines
Dinghies and small cruising yachts

The Barton Size 3 fiddle blocks with swivel and becket are engineered for efficient load handling and versatility, delivering reliable performance across a wide range of sailing applications. :contentReference[oaicite:0]{index=0}