I use Viton® for the' rubber' washers as they are 'MADE to LAST' unlike nitrile equivalents which often turn to mush within the year. Viton® fluoroelastomer from Dupont is well known for its excellent (400°F/200°C) heat resistance. Viton® offers excellent resistance to aggressive fuels and chemical including gasoline/petrol & kerosene/paraffin.
Pump leathers are crafted from hand selected hides & treated with natural oils & beeswax
Please check out my store for other washers & kits for Bialaddin, Vapalux, Tilley, Primus, Optimus etc lamps & stoves. If I don't list what you need please contact me with dimensions & I may be able to make & list them for you.
For purchases from multiple auctions shipping will be combined.