Description
Overview:
The Washer 6.1x21x1.4 is a genuine Stihl OEM flat washer used to space and spread loads under nuts, bolts, or screws in blower and sprayer assemblies. With a 6.1 mm inner diameter, 21 mm outer diameter, and 1.4 mm thickness, it helps protect mating surfaces and keeps fasteners secure under vibration. Made from durable metal, it provides consistent support where precise spacing is required on Stihl machines such as the BR45C and SR340. As an original part (MPN 9291 021 3863), it is built to the correct dimensions for reliable fit and function in service and repair work. Suitable for general fastening tasks across housings, frames, and brackets where a 6 mm-class fastener is used.
Key Features:
- Genuine Stihl part for assured compatibility and fit (MPN: 9291 021 3863)
- Precision dimensions: 6.1 mm ID x 21 mm OD x 1.4 mm thick
- Robust metal construction for long service life in demanding use
- Even load distribution helps protect components and fastener seats
- Stable, flat profile supports consistent torque and clamp force
- Helps resist loosening from vibration common in blowers and sprayers
- Simple, drop-in replacement for maintenance or repairs
- Suitable for use with 6 mm fasteners where spacing or surface protection is required
- Supports correct alignment of parts to reduce wear over time
- OEM quality helps maintain machine performance
Typical Applications:
Used wherever a flat washer is specified on Stihl backpack blowers and sprayers, including engine mounts, housing fixings, bracket joints, and fan or tube assemblies. Ideal for spreading the load of a bolt or nut over a wider surface, preserving plastic or alloy components, and maintaining clamp force under vibration. Common in routine service, rebuilds, and component replacement tasks.
Also known as:
Plain washer, spacer washer, shim washer, load-spreading washer, metal washer, fastening washer. Often described by its metric size (6.1 mm ID x 21 mm OD x 1.4 mm) for selection during repairs and maintenance.
Fits Models:
BR340, BR340L, BR380, BR420, BR420C, BR45C, SR340, SR420
Alternate Part Numbers:
9291-021-3863, 92910213863
Product Specifications
| L&S Part No. | 9291 021 3863 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 92910213863 |
| Unit of Sale | 1 |
| Applications | BR340, BR340L, BR380, BR420, BR420C, BR45C, SR 340, SR 420, SR340, SR420 |
| Machine Type | Backpack Blowers, Mist Blowers |
| Fits Brands | Stihl |
| Fits Models | BR45C | SR 340, SR 420 |
