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Email: sales@polymax.co.uk

British Standard Size O-rings Seals NBR Rubber BS425-BS475 from Polymax

Nitrile (or NBR) O-Rings are most commonly availible and cost effective. Temperature Range -30°C to +120°C (avoid prolonged use at higher extremes)

Suitable for:
Many hydrocarbons,
fats, oils gasoline,
petroleum based hydralic fluid etc

Generally atacked by:
Ozone, esters, retones,
aldehydes, chorimated,
and nito hydrocarbons

Material Specification (NBR)		Testing Parameters
Hardness	70° Shore 'A'	DIN 53505

Temperature Range	-30°C to +120°C	Avoid prolonged use at higher temperature

Tensile Strength	15 N/mm²	DIN 53504

Elongation At Break	340%	DIN 53504

Low Temperature Brittleness	-30°C	ASTM D 1329

Compression Set	9%	DIN 53517B

Download Datasheet

To assist o-ring installation also see our Silicone Grease

Article No.	Size ID x C⁄S (mm)	Number of Items	Quantity	Add To Cart +VAT
		1-50 51-100 101-500 501+
BS425N70	113.67x 6.99	£0.31 £0.26 £0.24 £0.22		(In Stock)
BS426N70	116.84 x 6.99	£0.31 £0.26 £0.24 £0.22		(In Stock)
BS427N70	120.02 x 6.99	£0.31 £0.26 £0.24 £0.22		(In Stock)
BS428N70	123.19 x 6.99	£0.31 £0.26 £0.24 £0.22		(In Stock)
BS429N70	126.37 x 6.99	£0.31 £0.26 £0.24 £0.22		(In Stock)
BS430N70	129.54 x 6.99	£0.31 £0.26 £0.24 £0.22		(In Stock)
BS431N70	132.72 x 6.99	£0.31 £0.26 £0.24 £0.22		(In Stock)
BS432N70	135.89 x 6.99	£0.35 £0.30 £0.28 £0.26		(In Stock)
BS433N70	139.07 x 6.99	£0.36 £0.31 £0.29 £0.27		(In Stock)
BS434N70	142.24x 6.99	£0.37 £0.32 £0.30 £0.28		(In Stock)
BS435N70	145.42 x 6.99	£0.37 £0.32 £0.30 £0.28		(In Stock)
BS436N70	148.59 x 6.99	£0.37 £0.32 £0.30 £0.28		(In Stock)
BS437N70	151.77 x 6.99	£0.37 £0.32 £0.30 £0.28		(In Stock)
BS438N70	158.12 x 6.99	£0.39 £0.34 £0.33 £0.31		(In Stock)
BS439N70	164.47 x 6.99	£0.50 £0.43 £0.42 £0.40		(In Stock)
BS440N70	170.82 x 6.99	£0.50 £0.43 £0.42 £0.40		(In Stock)
BS441N70	177.17 x 6.99	£0.50 £0.43 £0.42 £0.40		(In Stock)
BS442N70	183.52 x 6.99	£0.50 £0.43 £0.42 £0.40		(In Stock)
BS443N70	189.87 x 6.99	£0.50 £0.43 £0.42 £0.40		(In Stock)
BS444N70	196.22 x 6.99	£0.50 £0.43 £0.42 £0.40		(In Stock)
BS445N70	202.57 x 6.99	£0.50 £0.43 £0.42 £0.40		(In Stock)
BS446N70	215.27 x 6.99	£0.53 £0.48 £0.46 £0.45		(In Stock)
BS447N70	227.97 x 6.99	£0.55 £0.49 £0.48 £0.43		(In Stock)
BS448N70	240.67 x 6.99	£0.59 £0.56 £0.54 £0.49		(In Stock)
BS449N70	253.37 x 6.99	£0.63 £0.60 £0.57 £0.52		(In Stock)
BS450N70	266.07 x 6.99	£0.73 £0.71 £0.68 £0.65		(In Stock)
BS451N70	278.77 x 6.99	£0.75 £0.73 £0.71 £0.68		(In Stock)
BS452N70	291.47 x 6.99	£0.83 £0.78 £0.75 £0.71		(In Stock)
BS453N70	304.17 x 6.99	£0.83 £0.78 £0.75 £0.71		(In Stock)
BS454N70	316.87 x 6.99	£0.83 £0.78 £0.75 £0.71		(In Stock)
BS455N70	329.57 x 6.99	£0.83 £0.78 £0.75 £0.71		(In Stock)
BS456N70	342.27 x 6.99	£0.84 £0.79 £0.76 £0.72		(In Stock)
BS457N70	354.97 x 6.99	£0.85 £0.80 £0.77 £0.73		(In Stock)
BS458N70	367.67 x 6.99	£0.85 £0.80 £0.77 £0.73		(In Stock)
BS459N70	380.37 x 6.99	£0.89 £0.85 £0.82 £0.77		(In Stock)
BS460N70	393.07 x 6.99	£1.30 £1.21 £1.16 £1.11		(In Stock)
BS461N70	405.26 x 6.99	£1.30 £1.21 £1.16 £1.11		(In Stock)
BS462N70	417.96 x 6.99	£1.30 £1.21 £1.16 £1.11		(In Stock)
BS463N70	430.66 x 6.99	£1.30 £1.21 £1.16 £1.11		(In Stock)
BS464N70	443.36 x 6.99	£1.30 £1.21 £1.16 £1.11		(In Stock)
BS465N70	456.06 x 6.99	£1.30 £1.21 £1.16 £1.11		(In Stock)
BS466N70	468.76 x 6.99	£1.72 £1.63 £1.57 £1.53		(In Stock)
BS467N70	481.46 x 6.99	£1.72 £1.63 £1.57 £1.53		(In Stock)
BS468N70	494.16 x 6.99	£1.72 £1.63 £1.57 £1.53		(In Stock)
BS469N70	506.86 x 6.99	£1.72 £1.63 £1.57 £1.53		(In Stock)
BS470N70	532.26 x 6.99	£1.72 £1.63 £1.57 £1.53		(In Stock)
BS471N70	557.66 x 6.99	£1.85 £1.80 £1.75 £1.71		(In Stock)
BS472N70	582.68 x 6.99	£2.20 £2.12 £2.07 £1.99		(In Stock)
BS473N70	608.08 x 6.99	£2.20 £2.12 £2.07 £1.99		(In Stock)
BS474N70	633.48 x 6.99	£2.20 £2.12 £2.07 £1.99		(In Stock)
BS475N70	658.88 x 6.99	£2.40 £2.36 £2.29 £2.12		(In Stock)

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