# N-STL 3 1/2

**Manufacturer:** Martin  
**MPN:** `N-STL 3 1/2`

The Martin N-STL 3 1/2 Quick Disconnect Bushing is a high carbon steel component designed for mounting a pulley, sheave, or sprocket on a drive shaft. It features a split through flange and taper for strong clamping, a keyed shaft to prevent rotation, and a set screw over keyway for secure key placement. The bushing has a 3.5" bore, 7" outside diameter, and 8.12" length.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Martin |
| Manufacturer name | Martin |
| Manufacturer | Martin |
| extendedQty | 0 |
| moq | 1 |
| MPN | N-STL 3 1/2 |
| multiple | 1 |
| qtyInStock | 0 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Applied Industrial | 114239437 |  |  | None | 1 |
| Purvis | N-STL 3 1/2 | 1484.64 | 1 | None | 1 |
| motionindustries.com | 00263648 |  |  | None | 1 |
| MRO Supply | 248259 | 1158.92 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/206000000/206357500/part_--NSTL312---Martin--344fae2f1e.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp