Monroe
OneMonroe
Locations Throughout the Country
ISO 9001:2015
Tel: (877) 740-2007
Fax: (800) 453-9683
Email: sales@askmonroe.com
Website: monroeengineering.com
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OneMonroe offers high-quality polyurethane O-rings designed for a wide range of demanding applications where reliability and durability are paramount. These O-rings are crafted from premium polyurethane material, which provides outstanding resistance to wear, tear, and abrasion, making them ideal for sealing in environments exposed to extreme pressure, temperature fluctuations, and chemical interactions. Their robust structure ensures a long-lasting, dependable seal, preventing leaks and maintaining optimal performance in even the toughest industrial settings. Whether you need a solution for hydraulic systems, pneumatic equipment, or other machinery, OneMonroe Polyurethane O-Rings deliver precision and resilience.

Our range includes JIS (Japanese Industrial Standard) polyurethane O-rings, specifically engineered to meet stringent industry standards. These O-rings are available in various sizes and dimensions, allowing for a custom fit in numerous applications and systems. OneMonroe’s JIS polyurethane O-rings are known for their excellent resistance to oil, grease, and chemicals, which extends their lifespan and minimizes maintenance needs. This chemical resistance also makes them suitable for use in environments where other materials may degrade or fail prematurely. Additionally, their durable design ensures they can withstand high pressure without losing their integrity, making them a reliable choice for applications in demanding sectors like automotive, aerospace, and manufacturing.

At OneMonroe, we understand the importance of reliable sealing solutions in keeping your systems running smoothly and efficiently. Our polyurethane O-rings are manufactured to provide unmatched durability and performance, making them an investment in quality and reliability. Backed by OneMonroe’s commitment to excellence, these O-rings are an ideal choice for customers seeking high-performance sealing solutions that excel in both everyday and high-stress environments. Choose OneMonroe Polyurethane O-Rings for superior protection, a longer service life, and the peace of mind that comes with quality engineering and trusted materials.

For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.
JIS O-Rings
Unit of Measure
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Item #

IntegrationID

Type

Material

Cross Section Width

Durometer

Inside Diameter

CSW Tolerance

ID Tolerance

JIS Number

Quantity
P42 U-90 N/A
180016 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.138 in3.50 mm N/A 90 N/A 41.70 mm1.642 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-42
P44 U-70 N/A
180017 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.138 in3.50 mm N/A 70 N/A 43.70 mm1.720 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-44
P44 U-90 N/A
180018 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.138 in3.50 mm N/A 90 N/A 43.70 mm1.720 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-44
P45 U-70 N/A
180019 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.138 in3.50 mm N/A 70 N/A 44.70 mm1.760 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-45
P45 U-90 N/A
180020 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.138 in3.50 mm N/A 90 N/A 44.70 mm1.760 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-45
P46 U-70 N/A
180021 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.138 in3.50 mm N/A 70 N/A 45.70 mm1.799 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-46
P46 U-90 N/A
180022 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.138 in3.50 mm N/A 90 N/A 45.70 mm1.799 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-46
P48 U-70 N/A
180023 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.138 in3.50 mm N/A 70 N/A 47.70 mm1.878 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-48
P48 U-90 N/A
180024 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.138 in3.50 mm N/A 90 N/A 47.70 mm1.878 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-48
P48A U-70 N/A
180025 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 70 N/A 47.60 mm1.874 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-48A
P48A U-90 N/A
180026 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 90 N/A 47.60 mm1.874 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-48A
P49 U-70 N/A
180027 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.138 in3.50 mm N/A 70 N/A 48.70 mm1.917 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-49
P49 U-90 N/A
180028 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.138 in3.50 mm N/A 90 N/A 48.70 mm1.917 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-49
P5 U-70 N/A
180029 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.075 in1.90 mm N/A 70 N/A 4.80 mm0.189 in N/A 0.003 in0.09 mm N/A 0.005 in0.12 mm N/A P-5
P5 U-90 N/A
180030 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.075 in1.90 mm N/A 90 N/A 4.80 mm0.189 in N/A 0.003 in0.09 mm N/A 0.005 in0.12 mm N/A P-5
P50 U-70 N/A
180031 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.138 in3.50 mm N/A 70 N/A 49.70 mm1.957 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-50
P50 U-90 N/A
180032 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.138 in3.50 mm N/A 90 N/A 49.70 mm1.957 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-50
P50A U-70 N/A
180033 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 70 N/A 49.60 mm1.953 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-50A
P50A U-90 N/A
180034 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 90 N/A 49.60 mm1.953 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-50A
P52 U-70 N/A
180035 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 70 N/A 51.60 mm2.031 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-52
P52 U-90 N/A
180036 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 90 N/A 51.60 mm2.031 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-52
P53 U-70 N/A
180037 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 70 N/A 52.6 mm2.071 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-53
P53 U-90 N/A
180038 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 90 N/A 52.6 mm2.071 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-53
P55 U-70 N/A
180039 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 70 N/A 54.60 mm2.150 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-55
P55 U-90 N/A
180040 		N/A JIS Standard O-Ring N/A Polyurethane N/A 0.224 in5.70 mm N/A 90 N/A 54.60 mm2.150 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-55
Unit of Measure
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