Marsh Brothers M-04-1001-3 Fuel Cap Washer (Parker 39051-3) Qty(3)

The **Marsh Brothers Aviation AeroTough® GF Fuel Cap Washer Package** (P/N **M-04-1001-3**) provides a practical solution for fuel caps with tight or difficult-to-operate locking tabs. Each washer is CNC-machined to its specified shape from a proprietary thermoplastic polymer produced by Marsh Brothers Aviation’s parent company. This durable material provides inherent self-lubricating properties, exceptional toughness and strong wear resistance. According to Marsh Brothers Aviation, the material has four times lower friction than steel-on-steel contact. This helps the fuel cap locking tab operate smoothly while maintaining consistent opening and closing force. This package contains **three fuel cap washers** designed for **Shaw Aero Devices and Parker Aerospace 39051 Series fuel caps, P/N 39051-3**. --- ## Applications The **M-04-1001-3** fuel cap washer package is designed for selected **Beechcraft King Air, Beech 99 and 1900 series aircraft** equipped with a compatible **39051 Series fuel cap, P/N 39051-3**. Aircraft eligibility depends on the specific aircraft model, serial number and installed fuel cap configuration. --- ## Why CJ Aerospace? CJ Aerospace supplies approved aviation components backed by technical knowledge and responsive customer support: - 🇦🇺 **Australian-owned and operated** - 📦 **Efficient Australia-wide supply and delivery support** - 🔧 **Technical guidance on part selection and compatibility** - ✈️ **Supporting aircraft operators, maintainers and aviation professionals** > ✉️ [Contact us at sales@cjaerospace.com.au](mailto:sales@cjaerospace.com.au) > Need help confirming compatibility with your aircraft or fuel cap? Our team is ready to assist.

- Package containing **three AeroTough® GF fuel cap washers** - Grease-free design - Durable, non-metallic thermoplastic polymer construction - CNC-machined to the specified shape - Inherent self-lubricating properties - Helps provide smooth operation of the fuel cap locking tab - Supports consistent opening and closing force - Four times lower friction than steel-on-steel contact, according to the manufacturer - Exceptional toughness and wear resistance - Designed for long wear life - **FAA, TCCA and EASA approved**