Gaskets & O-Rings

Gaskets and O-rings are used to join two parts of a machine, engine or another often mechanical assembly by filling the space between both parts, creating a filled and sealed space in between. This seal prevents particle, vapour and fluid ingress or leakage to protect and maintain the joint or pressure whilst keeps debris out, ensuring proper function and safety. Gaskets and O-rings are used in various fields and industries including automotive, aerospace and general engineering.

How do gaskets and O-rings work?

A gasket or O-ring is seated between two parts, often in a groove in one of the two parts to be joined, then compressed between these two components to the corresponding groove creating a securely sealed joint. They can be used in dynamic joints where there is movement as well as in static or fixed applications.

Types of gaskets and O-rings

Gaskets and O-rings come in various materials suited to different purposes. Some have a high-temperature tolerance for use in both hot and cold applications, while others are made to be chemically resistant for use in lab or test equipment. Available in a wide range of sizes both in single size packs or in kits for general maintenance or when looking after a range of sealed part to ensure the correct size is available.

Gaskets and O-rings are typically made of elastomers like nitrile rubber and silicone, but they also come in plastics and other materials. This variety of material allows for specific gaskets and O-rings to be used to ensure the best fitting and most reliable seal.

Sizes vary between types both in diameter and thickness, these variations help provide an exact and precise seal to protect the joint. Both Metric and Imperial sizes are available to replace new and old gaskets and o-rings whether maintaining modern parts or older machines, engines and other mechanical parts.


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Description Price Inside Diameter Outside Diameter Thickness Type Material Minimum Operating Temperature Maximum Operating Temperature
RS Stock No. 527-9778
BrandRS PRO
PHP470.36
1 Bag of 50
Bag(s)
5.28mm 11/32in 1.78mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 128-984
BrandRS PRO
PHP426.57
1 Bag of 50
Bag(s)
2.9mm 6.35mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS Stock No. 521-5752
BrandRS PRO
PHP2,991.63
Each
units
- 25.4mm - O-Ring Seal Carbon Steel, Stainless Steel - -
RS Stock No. 689-653
BrandRS PRO
PHP334.26
1 Bag of 50
Bag(s)
7/16in 5/8in 3/32in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 527-9784
BrandRS PRO
PHP480.00
1 Bag of 50
Bag(s)
6.07mm 3/8in 1.78mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 129-072
BrandRS PRO
PHP878.31
1 Bag of 50
Bag(s)
12.37mm 17.46mm 2.62mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS Stock No. 128-990
BrandRS PRO
PHP466.51
1 Bag of 50
Bag(s)
3.68mm 7.14mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS Stock No. 689-754
BrandRS PRO
PHP549.83
1 Bag of 50
Bag(s)
1in 1 1/4in 1/8in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 527-9914
BrandRS PRO
PHP1,120.41
1 Bag of 50
Bag(s)
21.82mm 1 1/8in 3.53mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 129-044
BrandRS PRO
PHP475.22
1 Bag of 50
Bag(s)
9.25mm 12.7mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS Stock No. 211-8715
BrandRS PRO
PHP99.424
Each (In a Pack of 5)
units
5mm 16mm 6mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 796-0946
Mfr. Part No.SOFM0910003000015012A
BrandKlinger
PHP522.79
1 Bag of 10
Bag(s)
168.3mm 222.3mm 3mm RF Natural Rubber -25°C +80°C
RS Stock No. 129-038
BrandRS PRO
PHP448.46
1 Bag of 50
Bag(s)
7.65mm 11.11mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS Stock No. 796-0750
Mfr. Part No.SOFQ0030001500005001A
BrandKlinger
PHP459.02
1 Bag of 10
Bag(s)
60mm 105mm 1.5mm Inside Bolt C4400 -100°C +250°C
RS Stock No. 900-3152
Mfr. Part No.8112604
BrandAltech
PHP9.747
Each (In a Pack of 100)
units
12.5mm - 1.5mm O-Ring Buna-N -25°C +100°C
RS Stock No. 796-0766
Mfr. Part No.SOFQ0030001500015001A
BrandKlinger
PHP654.28
1 Bag of 10
Bag(s)
168mm 222mm 1.5mm Inside Bolt C4400 -100°C +250°C
RS Stock No. 129-123
BrandRS PRO
PHP1,683.55
1 Bag of 50
Bag(s)
18.66mm 25.4mm 3.53mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS Stock No. 475-209
Mfr. Part No.ORJ-17
BrandNylofix
PHP31.861
Each (In a Pack of 100)
units
16mm 19.6mm 1.8mm O-Ring Seal Nitrile Rubber -30°C +150°C
RS Stock No. 796-0928
Mfr. Part No.SOFQ0910003000010001A
BrandKlinger
PHP483.10
1 Bag of 10
Bag(s)
114.3mm 174.6mm 3mm RF Natural Rubber -25°C +80°C
RS Stock No. 796-0748
Mfr. Part No.SOFQ0030001500002501A
BrandKlinger
PHP399.18
1 Bag of 10
Bag(s)
33mm 68mm 1.5mm Inside Bolt C4400 -100°C +250°C