O-rings are perhaps the most common form of sealing mechanism in machine design, and with this O-ring kit, you'll have a large selection to choose from. Coming in a handy box and including various sizes of O-ring, it's an essential item for everyday maintenance or emergency repairs.

Including 385 individual pieces, this kit is robust but small enough to carry with you. It's also clearly organised into sections, so you can find the O-ring you need quickly. The O-rings themselves are made from either FPM (fluoro rubber) or rubber nitrile material, which allows for a wide range of operating temperatures and hardnesses, depending on the specific job or application.

O-rings are widely used in everything from static to pneumatic and hydraulic systems. You'll find them in pumps, cylinders and engines across industry.

• 385 pieces
• Nitrile operating temperatures of -30°C to 120°C
• FPM operating temperatures of -20°C to 200°C
• Shore hardness 70° (nitrile), 80° (FPM)
• Tensile strength (MPa) 15 (Nitrile)
• Cross-sectional thicknesses of 2 mm, 2.5 mm, 3 mm, 4 mm
• Internal diameters 3 to 8 mm, 10 to 12 mm, 14 mm, 16 to 17 mm, 19 to 20 mm, 22 mm, 24 to 25 mm, 27to 28 mm, 30 mm, 32 to 33 mm, 35 to 36 mm, 38 mm, 41 mm, 44 mm

RS PRO is our own brand range and brings you a wide range of high-quality, great value products offering you more choice. Trusted by engineers all over the world, every part of every RS PRO product has been rigorously tested against demanding industry standards

Hardness: ORINGS IN KIT ARE NITRILE 70 SHORE