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Crosby

S-643 Weldless Rings

Name: S-643 Weldless Rings
Brand: Crosby
SKU: 1013780
Price: 111.51 CAD
Availability: InStock

SKU: Part #1013780

$111.51 CAD

Sale Low stock

Size 7/8" x 4" 7/8" x 5-1/2" 1" x 4" 1-1/8" x 6" 1-1/4" x 5" 1-3/8" x 6"

Quantity

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Product Description

Crosby S-643 Weldless Rings are designed for use in wire rope slings, chain assemblies, and general rigging applications, providing a strong and reliable connection point for lifting and load handling. These rings are commonly used as end fittings or intermediate connection components in sling systems.
Manufactured from forged carbon steel with a weldless construction, S-643 rings offer enhanced strength and durability by eliminating weld points, ensuring consistent performance in demanding environments. (kitocrosby.com)

Material:
Body: Forged carbon steel
Heat treatment: Quenched and tempered for strength
Finish: Self-colored (plain)

Specifications:
Designed for wire rope and chain sling assemblies
Suitable for general rigging and lifting applications
Weldless forged construction for improved strength and reliability
Available sizes: approx. 1/4" to 2"
Working Load Limit range: approx. 2,200 lb to 46,000 lb (varies by size)
5:1 design factor (ultimate strength = 5× WLL)
Individually proof tested with certification
Marked with size and manufacturer identification
Compact and versatile design for easy integration into sling systems

Uses:
Wire rope sling assemblies
Chain sling systems
General lifting and rigging connections
Industrial material handling

Key Features:
Weldless construction – Eliminates weak points from welding
Forged steel design – High strength and durability
Versatile application – Works across multiple sling types
Reliable performance – Designed for consistent load handling
Proof tested – Certified for lifting applications

Size (in)	Stock No.	Working Load Limit - Single Pull (lb)	Weight Each (lb)	Ring Diameter (in)	Inside Diameter (in)	Outside Diameter (in)
7/8 x 5-1/2	1013806	5,600	3.47	0.88	5.50	7.25
7/8 x 4	1013780	7,200	2.72	0.88	4.00	5.75
1-1/8 x 6	1013842	10,400	6.60	1.13	6.00	8.25
1 x 4	1013824	10,800	3.69	1.00	4.00	6.00
1-1/4 x 5	1013860	17,000	6.82	1.25	5.00	7.50
1-3/8 x 6	1013888	19,000	10.12	1.38	6.00	8.75

Series: S-643 Weldless Rings

Material: Forged carbon steel, quenched and tempered.

Design Factor: 6:1.

Ultimate Load: Ultimate Load is 6 times the Working Load Limit.

Working Load Limit: Ratings shown are for a single straight pull.

Finish: Self-colored.

Compliance: Weldless rings meet the performance requirements of Federal Specification RR-C-271F Type VI, except for provisions required of the contractor.