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RS PRO Nitrile Rubber O-Ring Seal, 12.42mm Bore, 15.98mm Outer Diameter

7 In stock for delivery within 7 working day(s)
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Price (ex. GST) 1 Bag of 50


(exc. GST)


(inc. GST)



RS Stock No.:
Bag(s)Per BagPer unit*
1 +$6.15$0.123
*price indicative

RS PRO Imperial Nitrile 70 ShA O-Rings

Introducing the range of RS PRO Nitrile O-Rings, ideal for use as seals for pumps, drive belts, and other general engineering applications in the hydraulic and pneumatic industry. This O-ring is manufactured from Nitrile rubber (NBR), which is a cost-effective material and is great for applications where the O-ring is exposed to fats, greases and vegetable oils. With a variety of metric and imperial sizes available to suit a wide range of applications, the O-ring also offers long life and good chemical resistance to most hydrocarbons, oils and fuels to aid optimum performance for the life of the O-ring.

Features and Benefits:

  • This range of RS PRO O-rings are versatile seals that can be used as shaft seals, face to face seals, as well as facilitating rotary and linear movement

  • The nitrile material is hardwearing with excellent resistance to chemicals and provides optimum performance and a long-lasting seal life

  • Operating temperature range: -30°C to 90°C

  • Ideal for use as seals for pumps, drive belts, and other general engineering applications in the hydraulic and pneumatic industry

  • Available in a wide range of metric and imperial sizes


An O-ring is a type of round or donut-shaped seal and is most commonly used to stop fluids or air passing through into another area. O-rings are normally seated between two sections and when compressed, they form a secure seal that prevents particle, vapour and fluid leakage which in turn protects and maintains pressure whilst keeping debris out, ensuring proper function and safety. They come in different sizes and materials, depending on the application they are used for, so it is important to consider what materials and fluids are going to be in contact with the seal to ensure it is the right one. These seals or gaskets are most commonly used in:

  • Industrial and manufacturing applications

  • Plumbing

  • Hydraulics and pneumatics

  • Automotive manufacturing and repair

  • Power transmission technology

How long does an O-Ring last for?

If the O-ring is used in the correct conditions for the material, NBR O-rings can last for up to 15 years


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; they’re only given the RS PRO seal of approval if we’re confident of their exceptional quality, which means you can be confident too.


These Nitrile O-rings are not compatible with:

  • Ozone

  • Esters

  • Retones

  • Aldehydes

  • Chlorinates

  • Nitro Hydrocarbons

'O' Rings

'O' ring seals available in a choice of three materials to suit different applications. All 'O' rings are supplied in bags of 50.,The Nitrile 'O' rings are available in both Metric and Imperial sizes. Imperial sizes are to BS1806, Metric sizes are to BS4518.

Inside Diameter12.42mm
Outside Diameter15.98mm
TypeO-Ring Seal
MaterialNitrile Rubber
Minimum Operating Temperature-30°C
Maximum Operating Temperature+90°C