NBR O-Rings

Nitrile (or NBR) O-Rings are most commonly availible and are cost effective.
Ideal for use as seals on pumps, drive belts, and other general engineering applications.
NBR is good for applications that need to withstand fats, Greases and high temperature (+70°C).

For automotive applications requiring contact with petrol or diesel you may wish to consider Polymax Viton o ring kits Temperature Range -30ºC to +120ºC (avoid prolonged use at higher extremes).

British Standard Sizes:		Metric Sizes:
(Click to view range and order)		(Click to view range and order)

BS001 - BS050		1mm Cross Section O-rings
(Cross Section 1.02mm to 1.78mm)

BS102 - BS178		1.5mm Cross Section O-rings
(Cross Section 2.62mm)

BS201 - BS284		1.6mm Cross Section O-rings
(Cross Section 3.53mm)

BS309 - BS395		2mm Cross Section O-rings
(Cross Section 5.33mm)

BS425 - BS475		2.4mm Cross Section O-rings
(Cross Section 7.0mm)

BS517 - BS562		2.5mm Cross Section O-rings
(Cross Section 1.78mm)

BS606 - BS688		3mm Cross Section O-rings
(Cross Section 1.02mm to 6.99)

BS801 - BS886		4mm Cross Section O-rings
(Cross Section 1.78mm to 6.99)

BS901 - BS932		5mm Cross Section O-rings
(Cross Section 1.42mm - 3.0mm)

		5.7mm Cross Section O-rings

Also See our O-Rings Kits available in NBR , Viton , Silicone and EPDM

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NBR O-Rings

British Standard Sizes:

Metric Sizes: