Crosby McKissick 15 Ton #420 Bronze Bushing Single Sheave Snatch Block (8" Sheave, 3/4"-7/8" Wire Rope)
Crosby McKissick 15 Ton #420 Bronze Bushing Single Sheave Snatch Block (8" Sheave, 3/4"-7/8" Wire Rope)
SKU:C108275
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Description
CROSBY McKISSICK
420 Single-Sheave Snatch Block
15 metric-tonne WLL • 8-inch sheave • Bronze bushing
Built for wire-rope rigging
A single-sheave wire-rope block with a hook fitting and installed latch. Its opening design allows wire rope to be inserted without threading the full line through the block.
Specifications
| Specification | 108275 |
|---|---|
| Manufacturer stock number | 108275 |
| Model | 420 |
| Working Load Limit (WLL) | 15 metric tonnes |
| Sheave configuration | Single sheave |
| Nominal sheave diameter | 8 in. |
| Wire rope diameter | 3/4–7/8 in. |
| Bearing | Bronze bushing (BB) |
| End fitting | Hook with latch |
| Approximate product weight | 51 lb |
| Design factor | 4:1 |
WLL is shown in metric tonnes. BB identifies the bronze-bushed version of this model.
Key features
- Opening construction simplifies wire-rope installation.
- Hook latch supplied installed.
- Center-pin pressure lubrication fitting supports maintenance.
Dimensions
All values below are inches. Use the lettered drawing below; the full source is the Crosby catalog PDF.
| Drawing reference | Dimension (in.) |
|---|---|
| A | 23.50 |
| B | 8.12 |
| C | 5.09 |
| D | 8.34 |
| E | 1.76 |
| F | 16.51 |
| G | 1.50 |
| H | 2.93 |
Selection & safe use
Block WLL limits the total force on the block and its attachment, which depends on line tension and rigging geometry. It is not a direct winch line-pull rating.
These specifications cover wire rope. Do not assume compatibility with AmSteel-Blue or other synthetic ropes. Verify the rope, sheave, attachment and complete rigging arrangement for the application, and follow Crosby's inspection and operating instructions.
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