Description
Overview:
This Union Nut (part no. 4255 708 3105) is a genuine Stihl component for securing connections on Stihl sprayer systems. Made from durable, chemical‐resistant plastic in a black finish, it provides a firm, sealable coupling between mating parts such as hoses, lances and adapters. The knurled outer surface allows easy hand tightening and removal, even in wet or gloved conditions. Designed for Stihl backpack and battery sprayers, it helps maintain a leak‐free, reliable fluid path during regular spraying work. It is an exact-fit replacement for worn or damaged nuts on models including the SG 51 and SG 71, restoring proper function and helping to protect threads on adjoining components. As a Genuine Stihl OEM part, it supports dependable performance and straightforward maintenance.
Key Features:
- Genuine Stihl OEM part for assured compatibility and fit
- Durable, chemical‐resistant plastic suitable for common spray liquids
- Knurled grip for tool‐free tightening and removal
- Helps create a secure, leak‐resistant seal at hose and lance joints
- Protects mating threads and reduces wear on adjoining parts
- Reliable in demanding outdoor conditions and frequent use
- Quick to install to minimise downtime
- Supports routine maintenance of SG 51, SG 71 and SGA 85 sprayers
Typical Applications:
Used to fasten and seal connections on Stihl sprayers, including hose-to-pump outlets, hose-to-lance joints and accessory fittings. Suitable for grounds maintenance, landscaping, weed control, pest control and light sanitising tasks where a stable, leak‐resistant sprayer connection is required.
Also known as:
Union coupling nut, hose union nut, lance coupling nut, sprayer fitting nut, retaining nut for sprayer fittings, connector nut.
Fits Models:
SG 51, SG 71, SGA 85
Alternate Part Numbers:
4255-708-3105, 42557083105
Product Specifications
| L&S Part No. | 4255 708 3105 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42557083105 |
| Unit of Sale | 1 |
| Applications | SG 51, SG 71, SG51, SG71, SGA 85, SGA85 |
| Machine Type | Garden Sprinkler Systems |
| Fits Brands | Stihl |
| Fits Models | SG 51, SG 71 | SGA 85 |
