The Crosby A-1343 welded alloy master link is the primary connection point at the top of multi-leg chain sling assemblies. Forged from alloy steel and precisely welded, it provides a single attachment point for crane hooks while distributing load across multiple sling legs. Essential hardware for any overhead chain sling system.
Key Features
- Forged and welded alloy steel construction
- Designed as the top fitting for multi-leg chain slings
- Accommodates crane hooks of various sizes
- Proof tested at 2x WLL
- 5:1 design factor per ASME B30.26
Common Applications
- Top fitting for 2, 3, and 4-leg chain sling assemblies
- Crane hook connection point
- Multi-leg wire rope sling assemblies
- Heavy industrial overhead lifting
Standards & Compliance
Meets ASME B30.26 and ASME B30.9. Made in the USA by Crosby.
Safety & Standards
Every product we carry is individually marked with Working Load Limit (WLL), manufacturer traceability code, and country of origin. Inspection and mill certificates are available on request — email sales@slingcenter.com with your order number.
Governing Standards
- ASME B30.9 — slings (web, round, wire rope, chain) inspection and use
- ASME B30.26 — rigging hardware (shackles, eye bolts, links, turnbuckles)
- ASME B30.10 — hooks
- OSHA 1910.184 and 1926.251 — general industry and construction sling safety
- WSTDA WS-2 and RS-1 — web and round sling design
- 49 CFR 393.102 to 393.130 — DOT cargo tie-down
- NACM — welded steel chain grade specs
Inspection & Safety
Before every use: visual check for cracks, corrosion, distortion, wear, and illegible markings. Annually (minimum): documented periodic inspection by a trained inspector. Remove from service at first sign of damage. Never repair rigging hardware by welding, heating, or bending.
WARNING: Improper use of rigging can cause death or serious injury. Never exceed the rated Working Load Limit. Apply derating for side-loading, elevated temperature, or chemical exposure. Final application decisions must be made by a Qualified Person per OSHA 1926.32(m).
Specifications — Full Dimensions by Size
| Size (in)(mm) | WLL (lb)(lb) | Design Factor | Weight (lb)(kg) | A (in)(mm) | B (in)(mm) | C (in)(mm) | G (in)(mm) | Stock # |
|---|---|---|---|---|---|---|---|---|
| 0.5113.0 | 7,000 | 5:1 | 0.80.36 | 0.5113.0 | 2.3659.9 | 4.72119.9 | 0.266.6 | 1247051 |
| 0.6717.0 | 9,000 | 5:1 | 1.90.86 | 0.6717.0 | 3.5489.9 | 6.3160.0 | 0.338.4 | 1247087 |
| 0.7519.0 | 14,700 | 5:1 | 2.31.04 | 0.7519.0 | 3.5489.9 | 6.3160.0 | 0.338.4 | 1247096 |
| 0.8722.1 | 15,400 | 5:1 | 5.22.36 | 0.8722.1 | 5.71145.0 | 10.83275.1 | 0.4110.4 | 1247122 |
| 0.8722.1 | 19,400 | 5:1 | 3.61.63 | 0.8722.1 | 3.94100.1 | 7.09180.1 | 0.4110.4 | 1247120 |
| 0.9824.9 | 19,600 | 5:1 | 6.73.04 | 0.9824.9 | 5.71145.0 | 10.83275.1 | 0.5313.5 | 1247126 |
| 0.9824.9 | 25,300 | 5:1 | 5.32.4 | 0.9824.9 | 4.53115.1 | 8.27210.1 | 0.5313.5 | 1247124 |
| 1.127.9 | 28,600 | 5:1 | 8.53.86 | 1.127.9 | 5.71145.0 | 10.83275.1 | 0.5313.5 | 1247133 |
| 1.2632.0 | 37,400 | 5:1 | 10.64.81 | 1.2632.0 | 5.71145.0 | 10.83275.1 | 0.6616.8 | 1247142 |
| 1.4236.1 | 52,900 | 5:1 | 15.26.89 | 1.4236.1 | 6.1154.9 | 11.22285.0 | —— | 1247151 |
| 1.5739.9 | 69,400 | 5:1 | 16.17.3 | 1.5739.9 | 5.51140.0 | 10.63270.0 | —— | 1247163 |
| 1.7745.0 | 84,400 | 5:1 | 28.412.88 | 1.7745.0 | 7.09180.1 | 13.39340.1 | —— | 1247164 |
| 2.0151.1 | 99,200 | 5:1 | 42.119.1 | 2.0151.1 | 8.46214.9 | 15.35389.9 | —— | 1247166 |
| 2.1755.1 | 147,600 | 5:1 | 55.325.08 | 2.1755.1 | 7.99202.9 | 15.98405.9 | —— | 1247175 |
| 2.7569.8 | 198,360 | 5:1 | 94.442.82 | 2.7569.8 | 9.84249.9 | 17.72450.1 | —— | 1257591 |
| 3.1479.8 | 275,500 | 5:1 | 125.757.02 | 3.1479.8 | 10.24260.1 | 17.72450.1 | —— | 1257600 |
Dimensions and ratings sourced directly from manufacturer catalog pages. SlingCenter does not derive or restate ratings.
Order Sheet — 13 variants
Search below or click column headers to sort. Add any quantity per row to your cart.
| Option ▴▾ | SKU ▴▾ | Price ▴▾ | Stock | Qty | Add |
|---|---|---|---|---|---|
| 0.51 (WLL 7,000 lb) | 1247051 | $52.50 | ✓ In Stock | ||
| 0.67 (WLL 9,000 lb) | 1247087 | $65.50 | ✓ In Stock | ||
| 0.75 (WLL 14,700 lb) | 1247096 | $75.60 | ✓ In Stock | ||
| 0.87 (WLL 19,400 lb) | 1247120 | $86.30 | ✓ In Stock | ||
| 0.87 (WLL 15,400 lb) | 1247122 | $97.30 | ✓ In Stock | ||
| 0.98 (WLL 25,300 lb) | 1247124 | $108.40 | ✓ In Stock | ||
| 0.98 (WLL 19,600 lb) | 1247126 | $119.30 | ✓ In Stock | ||
| 1.1 (WLL 28,600 lb) | 1247133 | $124.70 | ✓ In Stock | ||
| 1.26 (WLL 37,400 lb) | 1247142 | $131.20 | ✓ In Stock | ||
| 1.42 (WLL 52,900 lb) | 1247151 | $204.00 | ✓ In Stock | ||
| 1.57 (WLL 69,400 lb) | 1247163 | $315.00 | ✓ In Stock | ||
| 1.77 (WLL 84,400 lb) | 1247164 | $628.00 | ✓ In Stock | ||
| 2.17 (WLL 147,600 lb) | 1247175 | $1,115.00 | ✓ In Stock |
Bulk order? Email sales@slingcenter.com with your list — we'll build a single quote.
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