Seals & O-Rings

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

How do seals and O-rings work?
A seal or O-ring is seated 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 seals and O-rings
Seals 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 seal and O-ring kits for general maintenance or when looking after a range of sealed part to ensure the correct size is available.

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

Sizes vary between seal and ring 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 seals and 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. 308-1046
Mfr. Part No.SP-304004/SEAL
BrandSKF
TWD298.00
Each
units
30mm 40mm 4mm Shaft Seal Nitrile Rubber -40°C +80°C
RS Stock No. 749-626
BrandRS PRO
TWD29.50
Each (In a Pack of 4)
units
18mm 27 → 29mm 7.5mm V-Ring Seal Nitrile Rubber -40°C +100°C
RS Stock No. 749-654
BrandRS PRO
TWD32.30
Each (In a Pack of 4)
units
27mm 37 → 39mm 7.5mm V-Ring Seal Nitrile Rubber -40°C +100°C
RS Stock No. 128-827
BrandRS PRO
TWD129.00
1 Bag of 50
Bag(s)
8.1mm 11.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 879-2845
Mfr. Part No.40411228
TWD326.00
Each
units
30mm 47mm 8mm Shaft Seal 72 NBR 902 -30°C +100°C
RS Stock No. 689-467
BrandRS PRO
TWD377.00
1 Bag of 50
Bag(s)
10.37mm 15.88mm 2.03mm Bonded Seal Nitrile Rubber -10°C +80°C
RS Stock No. 527-9992
BrandRS PRO
TWD911.00
1 Bag of 50
Bag(s)
32.92mm 1-9/16in 3.53mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 245-9612
BrandRS PRO
TWD4,158.00
1 Kit
Kit(s)
- - - Metric O-Ring Splicing Kit Viton® - -
RS Stock No. 295-2199
Mfr. Part No.792748
TWD404.00
1 Bag of 2
Bag(s)
40mm 56mm 8mm Shaft Seal Nitrile Rubber -30°C +110°C
RS Stock No. 211-8939
BrandRS PRO
TWD63.40
Each (In a Pack of 5)
units
18mm 35mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 749-610
BrandRS PRO
TWD28.50
Each (In a Pack of 4)
units
14mm 21.5 23.5mm 5.5mm V-Ring Seal Nitrile Rubber -40°C +100°C
RS Stock No. 879-2722
Mfr. Part No.40411079
TWD230.00
Each
units
6mm 19mm 6mm Shaft Seal 72 NBR 902 -30°C +100°C
RS Stock No. 521-5752
BrandRS PRO
TWD1,584.00
Each
units
- 25.4mm - O-Ring Seal Carbon Steel, Stainless Steel - -
RS Stock No. 128-811
BrandRS PRO
TWD129.00
1 Bag of 50
Bag(s)
6.1mm 9.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 877-7660
Mfr. Part No.40413647
TWD270.00
Each
units
12mm 32mm 7mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 900-3162
Mfr. Part No.8112801
BrandAltech
TWD4.60
Each (In a Pack of 50)
units
7mm 9.4mm - - NBR 70 -30°C +120°C
RS Stock No. 295-2026
Mfr. Part No.722133
TWD424.00
1 Bag of 2
Bag(s)
20mm 28mm 7mm Shaft Seal Nitrile Rubber -30°C +110°C
RS Stock No. 877-7663
Mfr. Part No.40413492
TWD525.00
Each
units
50mm 80mm 8mm Shaft Seal 72 NBR 902 -40°C +100°C
RS Stock No. 879-2763
Mfr. Part No.40413429
TWD692.00
Each
units
75mm 100mm 10mm Shaft Seal 72 NBR 902 -30°C +100°C
RS Stock No. 295-2278
Mfr. Part No.722513
TWD391.00
1 Bag of 2
Bag(s)
48mm 65mm 10mm Shaft Seal Nitrile Rubber -30°C +110°C