Material - Rubber.
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Type: 225pcs Rubber O Rings. O Rings Features:Anti static, oil, fuel &many corrosive liquids resistant, heat resistant, wear resistant, durable and long service life. Colour: Black. Nitrile rubber(NBR) Quantity:225 Pieces/18 Popular sizes.
eBay
O Rings Features:Anti static, oil, fuel &many corrosive liquids resistant, heat resistant, wear resistant, durable and long service life. Colour: Black. Nitrile rubber(NBR) Quantity:225 Pieces/18 Popular sizes.
eBay
Flat Tap Washer.
eBay
225Pcs Tap Assorted Plumbing Gasket Kit Rubber O-Ring Seals Set Black UK. Perfect to use to prevent leaks while working with plumbing, hydraulics, air and gas connections. Rubber construction resists oil, gas, water, and alcohol solvents.
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These original Holdtite rubber tap washers are ideal for replacing old worn tap washers so you don't have to buy a new tap. Unlike many that are thin & flimsy, these are thick, strong & very durable.
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Flat Tap Washer.
eBay
Perfect to use to prevent leaks while working with plumbing, hydraulics, air and gas connections. Rubber construction resists oil, gas, water, and alcohol solvents. 225PCS Rubber O-Rings (including 18 different sizes).
eBay