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Quad® Rings provide improved stability and lubricity over conventional o-rings, reducing the tendency to spiral in the groove. They interchange standard o-rings in a variety of static and dynamic sealing applications including rotary, reciprocating or oscillating motion.

Buna-N QUAD® Rubber Material | 2 1/2 in Nominal Inner Diameter | 1/8 in Cross Section | X-Ring

Features

  • Reducing the tendency to spiral in the groove
  • Interchange standard o-rings in a variety of static and dynamic sealing applications
  • Pressure range varies according to diametral clearance
  • Temperature range of -40 °F to -240 °F

$3.57
/EA
SOR-75NBR-3.75x1/8-C/S(10) - 580-240 | CRC Distribution Inc.

Style 580 Square O-rings are circular elastomeric rings that create a seal between two or more parts. They are made from a variety of materials, including BUNA-N rubber, and are used in a variety of industries, including automotive, aerospace, and manufacturing.

Buna-N Rubber Material | 3 3/4 in Nominal Inner Diameter | 1/8 in Cross Section | Square O-ring

Features

  • Pressure range varies according to diametral clearance
  • Temperature range of -40 °F to -240 °F

$1.46
/EA
OR-75V-1-7/8x1/8-C/S(3) - 568-225V | CRC Distribution Inc.

O-rings as elastic loops that seal static and dynamic applications. They are used to seal the space between cylinders, pistons, pipes and tubes and can be made from various materials.

75 Durometer | Fluorocarbon Material | 1 7/8 in Nominal Inner Diameter | 1/8 in Cross Section | O-Ring

Features

  • Pressure range varies according to diametral clearance
  • Temperature range of -20 °F to -400 °F

$3.44
/EA
Urethane Head Seal | CRC Distribution Inc.

Molded in 90A urethane, this seal was developed to be used as a head seal and to replace an o-ring and a back-up. Its symmetrical one-piece design reduces the risk of installation damage and back-up blow-out.

90A Durometer | Urethane Material | 2 3/4 in Nominal Inner Diameter | 1/8 in Cross Section | Head Seal

$15.60
/EA
2 1/16 X 2 3/8 X 1/8 O-ring NBR 90 (20) - 568-227-90D | CRC Distribution Inc.

O-rings as elastic loops that seal static and dynamic applications. They are used to seal the space between cylinders, pistons, pipes and tubes and can be made from various materials.

90 Durometer | Buna-N Rubber Material | 2 1/8 in Nominal Inner Diameter | 1/8 in Cross Section | O-Ring

Features

  • Pressure range varies according to diametral clearance
  • Temperature range of -40 °F to -240 °F

$0.90
/EA

O-ring

O-Ring

$1.74
/EA
OR-90V-3/4x1/16-C/S(15) - 568-018-90DV | CRC Distribution Inc.

O-rings as elastic loops that seal static and dynamic applications. They are used to seal the space between cylinders, pistons, pipes and tubes and can be made from various materials.

90 Durometer | Fluorocarbon Material | 3/4 in Nominal Inner Diameter | 1/16 in Cross Section | O-Ring

Features

  • Pressure range varies according to diametral clearance
  • Temperature range of -20 °F to -400 °F

$0.93
/EA

OR-90NBR-34×3-C/S(10)

$1.92
/EA

O-rings as elastic loops that seal static and dynamic applications. They are used to seal the space between cylinders, pistons, pipes and tubes and can be made from various materials.

70A Durometer | Nitrile Material | 43.7 MM Nominal Inner Diameter | 3.5 MM Cross Section | O-Ring

Features

  • Chemical resistance
  • Temperature range of -40 °F to 220 °F

$1.04
/EA

O-ring

O-Ring

$20.21
/EA
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Seals/O-rings 

O-rings

An o-ring is a loop of elastomer with a round cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface. O-rings are one of the most common seals used in machine design because they are inexpensive, easy to make, reliable, and have simple mounting requirements.