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Crosby

A-1343 Grade 100 Welded Master Link

A-1343 Grade 100 Welded Master Link

SKU: Part #1247151

Regular price $255.86 CAD
Regular price Sale price $255.86 CAD
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Product Description

Crosby A-1343 Welded Master Links are designed for use as the primary top link in chain sling assemblies, providing a strong and reliable connection point for overhead lifting applications. These links are commonly used in single-leg and multi-leg sling configurations, ensuring proper load distribution and secure lifting performance.
Manufactured from high-strength alloy steel and fully welded, the A-1343 offers excellent durability and structural integrity for demanding industrial and offshore lifting environments.

Material:
Body: Alloy steel
Heat treatment: Quenched and tempered for strength and toughness

Specifications:
Designed for top connection in chain sling assemblies (single or multi-leg)
Compatible with Grade 100 and Grade 80 chain slings
5:1 design factor (ultimate strength = 5× Working Load Limit)
Individually proof tested with certification
Proof testing performed using special fixtures to prevent localized point loading
Each link marked with:
Product Identification Code (PIC) for traceability
Size, grade, and manufacturer identification
Meets or exceeds ASME B30.26 and EN 1677-4 standards
Fatigue rated for repeated lifting cycles (approx. 20,000 cycles)

Uses:
Top link for chain sling assemblies
Overhead lifting and rigging
Industrial and construction lifting operations
Offshore and heavy-duty applications

Key Features:
High strength design – Welded Grade 100 alloy steel construction
Reliable connection – Primary lifting point for sling systems
Proof tested – Certified for safe lifting applications
Traceability – PIC marking ensures full material tracking
Durable performance – Designed for heavy-duty environments
Fatigue resistant – Suitable for repeated lifting cycles

Stock No. Weight Each (lb) Grade 100 Chain Sling - Single Leg Chain Size (in) Grade 100 Chain Sling - Double Leg Chain Size (in) Grade 80 Chain Sling - Single Leg Chain Size (in) Grade 80 Chain Sling - Double Leg Chain Size (in) Working Load Limit (lb) Proof Load (lb) Dimension A (in) Dimension B (in) Dimension C (in) Dimension G (in) Engineered Flat Size for S-1325A (in)
1247051 0.8 6 mm, 9/32 6 mm 6 mm, 9/32 6 mm, 9/32, 5/16 7,000 17,632 0.51 2.36 4.72 0.26 6 mm, 9/32, 5/16
1247087 1.9 5/16, 3/8 9/32 5/16, 3/8 5/16 9,000 22,701 0.67 3.54 6.30 0.33 3/8
1247096 2.3 3/8, 1/2 5/16 3/8, 1/2 3/8 14,700 37,027 0.75 3.54 6.30 0.33 3/8, 1/2
1247122 5.2 3/8, 1/2 3/8 3/8, 1/2 3/8 15,400 38,570 0.87 5.71 10.83 0.41 1/2
1247120 3.6 3/8, 1/2 3/8 5/8 3/8 19,400 48,188 0.87 3.94 7.09 0.41 1/2
1247126 6.7 1/2 3/8 1/2, 5/8 3/8 19,600 48,929 0.98 5.71 10.83 0.53 5/8
1247124 5.3 5/8, 1/2 3/8 5/8 1/2 25,300 63,475 0.98 4.53 8.27 0.53 5/8
1247133 8.5 5/8, 1/2 1/2 5/8 1/2 28,600 71,630 1.10 5.71 10.83 0.53 5/8
1247142 10.6 5/8, 3/4 1/2 3/4 5/8 37,400 93,670 1.26 5.71 10.83 0.66 —
1247151 15.2 3/4 5/8 3/4, 7/8 3/4 52,900 132,240 1.42 6.10 11.22 — —
1247163 16.1 7/8 3/4 7/8 7/8 69,400 173,675 1.57 5.51 10.63 — —
1247164 28.4 1 7/8 1 1 84,400 210,923 1.77 7.09 13.39 — —
1247166 42.1 1, 1-1/4 7/8 1 1 99,200 247,950 2.01 8.46 15.35 — —
1247175 55.3 1-1/4 1 1-1/4 1-1/4 147,600 369,170 2.17 7.99 15.98 — —

Series: Grade 100 A-1343 Welded Master Link

Design Factor: 5:1. Applications with wire rope and synthetic slings generally require a 5:1 Design Factor.

Load Rating: Ratings are based on a single-leg sling in an in-line load, or the resultant load on multiple legs with an included angle less than or equal to 120 degrees.

Proof Test: Proof Test Load equals or exceeds the requirements of ASTM A952 (8.1) and ASME B30.9.

Chain Sling Design Factor: Chain slings require a 4:1 Design Factor. Refer to Crosby Applications & Warnings to determine the product's actual Ultimate Load.

Manufactured Flats: There are no manufactured flats on links over 1-1/4 in (32 mm).

* Grade 80 Models: Master links identified with an asterisk (*) are Grade 80 and painted gold.

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