Metric Polyurethane O-Rings

OneMonroe’s Metric Polyurethane O-Rings are designed for maximum durability and exceptional sealing performance in a wide range of applications. Crafted from high-quality polyurethane, these O-rings offer outstanding resistance to abrasion, chemicals, and high-pressure environments, making them ideal for industries that demand both reliability and longevity. Whether used in hydraulics, pneumatics, or mechanical assemblies, OneMonroe’s Metric Polyurethane O-Rings deliver dependable sealing solutions that withstand tough conditions, ensuring your systems operate smoothly and efficiently.

Our metric O-rings are available in various sizes to provide versatility and precision for any engineering or industrial requirement. These O-rings are specifically designed to provide a reliable seal for metric-based equipment, allowing for exact fitment and minimal leakage. The superior strength and elasticity of polyurethane make these O-rings more durable than traditional rubber alternatives, significantly extending the service life and reducing maintenance downtime. With their exceptional chemical and temperature resistance, OneMonroe Metric Polyurethane O-Rings are a trusted choice for applications ranging from automotive systems to heavy machinery and beyond.

OneMonroe is committed to providing premium-quality products that meet the rigorous demands of our clients. Our polyurethane O-rings undergo stringent quality checks and are manufactured to exact specifications, ensuring reliable performance in diverse environments. As a trusted provider of industrial and engineering components, we support our clients with expert guidance and a wide selection of high-quality sealing solutions. When you choose OneMonroe Metric Polyurethane O-Rings, you’re investing in dependable performance, longevity, and efficiency for all your sealing needs.

For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.

Item #	IntegrationID	Type	Material	Cross Reference	Cross Section Width	Durometer	Inside Diameter
41.5 X 2 U-70	N/A 140233	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S42	N/A 2.00 mm	N/A 70	N/A 41.50 mm
39.5 X 2 U-70	N/A 140095	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S40	N/A 2.00 mm	N/A 70	N/A 39.50 mm
3.5 X 1.5 U-70	N/A 139491	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S4	N/A 1.50 mm	N/A 70	N/A 3.50 mm
38.5 X 2 U-70	N/A 140032	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S39	N/A 2.00 mm	N/A 70	N/A 38.50 mm
37.5 X 2 U-70	N/A 139971	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S38	N/A 2.00 mm	N/A 70	N/A 37.50 mm
36.5 X 2 U-70	N/A 139908	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S36	N/A 2.00 mm	N/A 70	N/A 36.50 mm
35 X 2 U-70	N/A 139831	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S35.5	N/A 2.00 mm	N/A 70	N/A 35.00 mm
34.5 X 2 U-70	N/A 139779	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S35	N/A 2.00 mm	N/A 70	N/A 34.50 mm
33.5 X 2 U-70	N/A 139713	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S34	N/A 2.00 mm	N/A 70	N/A 33.50 mm
31.5 X 2 U-70	N/A 139581	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S32	N/A 2.00 mm	N/A 70	N/A 31.50 mm
31 X 2 U-70	N/A 139567	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S31.5	N/A 2.00 mm	N/A 70	N/A 31.00 mm
29.5 X 2 U-70	N/A 139422	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S30	N/A 2.00 mm	N/A 70	N/A 29.50 mm
2.5 X 1.5 U-70	N/A 138645	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S3	N/A 1.50 mm	N/A 70	N/A 2.50 mm
28.5 X 2 U-70	N/A 139357	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S29	N/A 2.00 mm	N/A 70	N/A 28.50 mm
27.5 X 2 U-70	N/A 139286	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S28	N/A 2.00 mm	N/A 70	N/A 27.50 mm
25.5 X 2 U-70	N/A 139147	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S26	N/A 2.00 mm	N/A 70	N/A 25.50 mm
24.5 X 2 U-70	N/A 139053	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S25	N/A 2.00 mm	N/A 70	N/A 24.50 mm
23.5 X 2 U-70	N/A 138964	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S24	N/A 2.00 mm	N/A 70	N/A 23.50 mm
21.9 X 2 U-70	N/A 138789	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S22.4	N/A 2.00 mm	N/A 70	N/A 21.90 mm
21.5 X 1.5 U-70	N/A 138777	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S22	N/A 1.50 mm	N/A 70	N/A 21.50 mm
19.5 X 1.5 U-70	N/A 138552	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S20	N/A 1.50 mm	N/A 70	N/A 19.50 mm
17.5 X 1.5 U-70	N/A 138347	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S18	N/A 1.50 mm	N/A 70	N/A 17.50 mm
15.5 X 1.5 U-70	N/A 138133	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S16	N/A 1.50 mm	N/A 70	N/A 15.50 mm
149.5 X 2 U-70	N/A 138109	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S150	N/A 2.00 mm	N/A 70	N/A 149.50 mm
14.5 X 1.5 U-70	N/A 138009	N/A Metric Standard O-Ring	N/A Polyurethane	N/A S15	N/A 1.50 mm	N/A 70	N/A 14.50 mm

N/A
140233

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S42

N/A 2.00 mm

N/A 70

N/A 41.50 mm

39.5 X 2 U-70

N/A
140095

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S40

N/A 2.00 mm

N/A 70

N/A 39.50 mm

3.5 X 1.5 U-70

N/A
139491

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S4

N/A 1.50 mm

N/A 70

N/A 3.50 mm

38.5 X 2 U-70

N/A
140032

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S39

N/A 2.00 mm

N/A 70

N/A 38.50 mm

37.5 X 2 U-70

N/A
139971

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S38

N/A 2.00 mm

N/A 70

N/A 37.50 mm

36.5 X 2 U-70

N/A
139908

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S36

N/A 2.00 mm

N/A 70

N/A 36.50 mm

35 X 2 U-70

N/A
139831

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S35.5

N/A 2.00 mm

N/A 70

N/A 35.00 mm

34.5 X 2 U-70

N/A
139779

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S35

N/A 2.00 mm

N/A 70

N/A 34.50 mm

33.5 X 2 U-70

N/A
139713

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S34

N/A 2.00 mm

N/A 70

N/A 33.50 mm

31.5 X 2 U-70

N/A
139581

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S32

N/A 2.00 mm

N/A 70

N/A 31.50 mm

31 X 2 U-70

N/A
139567

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S31.5

N/A 2.00 mm

N/A 70

N/A 31.00 mm

29.5 X 2 U-70

N/A
139422

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S30

N/A 2.00 mm

N/A 70

N/A 29.50 mm

2.5 X 1.5 U-70

N/A
138645

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S3

N/A 1.50 mm

N/A 70

N/A 2.50 mm

28.5 X 2 U-70

N/A
139357

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S29

N/A 2.00 mm

N/A 70

N/A 28.50 mm

27.5 X 2 U-70

N/A
139286

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S28

N/A 2.00 mm

N/A 70

N/A 27.50 mm

25.5 X 2 U-70

N/A
139147

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S26

N/A 2.00 mm

N/A 70

N/A 25.50 mm

24.5 X 2 U-70

N/A
139053

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S25

N/A 2.00 mm

N/A 70

N/A 24.50 mm

23.5 X 2 U-70

N/A
138964

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S24

N/A 2.00 mm

N/A 70

N/A 23.50 mm

21.9 X 2 U-70

N/A
138789

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S22.4

N/A 2.00 mm

N/A 70

N/A 21.90 mm

21.5 X 1.5 U-70

N/A
138777

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S22

N/A 1.50 mm

N/A 70

N/A 21.50 mm

19.5 X 1.5 U-70

N/A
138552

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S20

N/A 1.50 mm

N/A 70

N/A 19.50 mm

17.5 X 1.5 U-70

N/A
138347

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S18

N/A 1.50 mm

N/A 70

N/A 17.50 mm

15.5 X 1.5 U-70

N/A
138133

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S16

N/A 1.50 mm

N/A 70

N/A 15.50 mm

149.5 X 2 U-70

N/A
138109

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S150

N/A 2.00 mm

N/A 70

N/A 149.50 mm

14.5 X 1.5 U-70

N/A
138009

N/A Metric Standard O-Ring

N/A Polyurethane

N/A S15

N/A 1.50 mm

N/A 70

N/A 14.50 mm