In Stock Best Fittings 1/8" BSP Bonded Seal Washers - 5 Pack
- Designed for 1/8" BSP male threads commonly used in airgun charging systems
- Dowty-style bonded seal construction combining a metal washer with an integrated rubber sealing element
- Creates a reliable, leak-free seal when tightening male parallel BSP fittings against a flat face
- Ideal for air rifle fill probes, regulators, and charging equipment
- Precision sized for standard fill probe threads used across many PCP airgun systems
- Physical outside diameter of 3/8" (9.6mm) for correct fitment on 1/8" BSP fittings
- Helps prevent air leaks and pressure loss in high-pressure charging setups
- Durable bonded design for consistent sealing performance
- Convenient pack of 5 washers for replacements or spares
- Compact and easy to install during routine maintenance or fitting changes
The Best Fittings 1/8" BSP Bonded Seal Washers – 5 Pack are designed to provide a reliable, leak-free seal for fittings that use a 1/8" BSP male thread, making them ideal for use with air rifle charging equipment and other high-pressure applications. Manufactured as Dowty-style bonded seals, these washers combine a metal outer ring with an integrated rubber sealing element to ensure a tight seal when connecting male parallel BSP fittings against a flat face.
Commonly used on standard air rifle fill probes, these washers help prevent air leaks and maintain a secure connection within charging systems. With a physical thread outside diameter of 3/8" (9.6mm), they are perfectly sized to suit standard 1/8" BSP fittings used across a wide range of PCP airgun accessories and charging equipment.
Supplied in a convenient pack of five, these bonded seal washers are an essential spare component for maintaining your charging setup, ensuring consistent sealing performance and dependable reliability whenever fittings are connected or replaced.
- Designed for 1/8" BSP male threads commonly used in airgun charging systems
- Dowty-style bonded seal construction combining a metal washer with an integrated rubber sealing element
- Creates a reliable, leak-free seal when tightening male parallel BSP fittings against a flat face
- Ideal for air rifle fill probes, regulators, and charging equipment
- Precision sized for standard fill probe threads used across many PCP airgun systems
- Physical outside diameter of 3/8" (9.6mm) for correct fitment on 1/8" BSP fittings
- Helps prevent air leaks and pressure loss in high-pressure charging setups
- Durable bonded design for consistent sealing performance
- Convenient pack of 5 washers for replacements or spares
- Compact and easy to install during routine maintenance or fitting changes
- Best Fittings 1/8" BSP Bonded Seal Washers 5 Pk
Delivery costs & estimated arrival
Find your country below for the delivery charge and how long your order should take to reach you. All orders ship with FedEx. Estimates are in working days and exclude weekends and public holidays.
| Country | Up to 2kg | 2kg – 30kg | Estimated delivery | ||
|---|---|---|---|---|---|
| Order under €350 | Order €350 & over | Order under €350 | Order €350 & over | ||
| Austria | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| Belgium | €8.95 | €14.95 | €14.95 | €14.95 | 4-6 working days |
| Bulgaria | €11.95 | €31.95 | €31.95 | €31.95 | 7-9 working days |
| Croatia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Cyprus | €14.95 | €89.95 | €89.95 | €89.95 | Contact us |
| Czechia | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Denmark | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Estonia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Finland | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| France | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Germany | €8.95 | €14.95 | €14.95 | €14.95 | 5-7 working days |
| Greece | €11.95 | €31.95 | €31.95 | €31.95 | 8-10 working days |
| Hungary | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Ireland | €6.95 | €6.95 | €8.95 | €8.95 | 2-4 working days |
| Italy | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Latvia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Lithuania | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Luxembourg | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Malta | €14.95 | €89.95 | €89.95 | €89.95 | Contact us |
| Monaco | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Poland | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Romania | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Slovakia | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Slovenia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Spain | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| Sweden | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
Returns & withdrawal
Which option you use depends on why you are sending the item back.
Changed your mind?
You have 14 days from receiving your order to withdraw from your purchase. Use our Withdrawal from Contract form to tell us. It is the quickest way, and we will then email you a free returns label.
If you would rather post the item back yourself to our returns address in Ireland, you pay the postage. Full details are on our Returns page.
Withdrawal from ContractFaulty, damaged or wrong item?
If your item arrived faulty, damaged or not what you ordered, please follow the steps on our Returns page. We cover the cost of returning these items.
Full details of all our return options are on that page.
Returns pageDelivery prices are shown in euros and confirmed at checkout.

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