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O Ring & O Ring Boxes

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O Ring & O Ring Boxes

O-ring kits are the ideal solution for maintenance applications and taking the guesswork out of part selection. Global O-Rings and Seals stocks O-Ring kits in a variety of materials, styles, and sizes to meet your specific needs. These kits are an effective tool for reducing maintenance and assembly personnel costs by eliminating the guesswork in part selection and saving time in part sorting.

All manufactured NNK can be brand labeled to your company's specifications. If you are looking for a kit specific to your vehicle make and model or any OEM brand, feel free to contact us!


NNK O-Ring Kits

NNK O-rings are the most commonly used type of seals and consist of a low friction filled polytetrafluoroethylene (PTFE) ring combined with an O-ring rubber seal. As long as the groove design and material selection are correct, and the operating conditions are within the temperature range of the rubber material, the seal can play a long-term sealing effect in static sealing or dynamic sealing. The O-ring can provide sufficient sealing preload and compensate for the wear of the PTFE ring. The structure of the sealing part is simple, the installation part is compact, and the weight is light.


  • rings for stationary seals
  • O-rings for reciprocating seals
  • O-rings for rotary seals



The sealing groove has simple structure, small volume and compact installation position.

It can be sealed in both directions and can be used for dynamic and static sealing.

It has self-sealing effect, strong sealing and not easy to leak.

The surface is smooth and the frictional resistance of movement is small. The rubber has good elasticity and strong compression resistance.



Nitrile (NBR); Fluorine rubber (FKM, FPM, VITON); Silicone (SIL, VMQ); EPDM (EPDM); Hydrogenated Nitrile (HNBR); Fluorosilicone (FVMQ); AFLAS); perfluoroether (FFKM);



Machine tools, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, construction machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, as well as various instruments, various mechanical equipment

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    Mr ken (sales manager): +86 156 0767 8250