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Selecting the correct seals and O-rings is crucial for ensuring the longevity and proper function of various mechanical systems. In applications ranging from plumbing to automotive, the right seal prevents leaks, maintains pressure, and protects against contaminants. Investing in quality ensures reliability and reduces the likelihood of costly repairs.
Multiple Sizes: o-ring assortment kit contains 20 metric rubber o-rings, (IDxCS): 1x2, 2.5x1, 3x1, 4x1, 4.5x1, 5x2, 6x2, 7x2, 8x2, 9x2, 10x2, 12x3, 13x3, 14x2.5, 16x2, 17x2.5, 18x2, 20x2, 22x2, 25x2.4mm. Which can meet almost all of your needs
High quality material: O-ring bushings are made of commercial grade NBR material with a working temperature range of -40℉/-40℃ to 248℉/120℃. With excellent resistance to high and low temperatures, it is very suitable for thermal machinery...
Wide applications: O-ring classification is very suitable for faucets, high-pressure washers, motorcycles, boats, car engines, pumps, solenoid valves, meters, sensors, mechanical bearings, pressure pipes and other accessories for sealing DIY repairs
Easy to use and store: Various o-ring kits, 20 sizes of o-rings are placed in order in a sturdy plastic storage box, each size comes with a detailed label paper, very easy to use, o-rings are stored in order of size, easy to retrieve and store
Wide Range of Applications: This O-ring assortment kit is ideal for use in faucets, plumbing, pressure washers, hose nozzles, sinks, filters, and automotive engines.It's good for sealing and repairing mechanical bearings, pumps, boats, oil and gas control...
Assortment of Sizes: The kit includes 500 rubber O-rings in 20 different sizes, ensuring you always have the right fit for your projects. These O-rings are essential for various sealing tasks, making it a must-have for both professionals enthusiasts.With...
Premium Quality Rubber O-Rings: Made from high-grade Nitrile Butadiene Rubber (NBR), these O-rings are highly durable and resistant to wear, deformation, corrosion, and extreme temperatures ranging from -40°F to 248°F (-40°C to 120°C).Whether you're...
Convenient Classification: Each O-ring is stored in a sturdy plastic case with individual compartments, clearly labeled for easy identification and retrieval. The detailed size chart helps you find the exact O-ring quickly, saving you time and effort...
{WIDE APPLICATION} O ring kit for faucets,plumbing,pressure washer,hose nozzles,sinks,filters,hydraulics fluid,auto engines, machinery bearings,pumps,boats,oils,gas control valve, spray, air,kitchen bathroom water fitting seal leak repair
{MULTIPLE SIZE} Metric oring assortment kits contains the most commonly used 22 size ID:(3mm, 4mm, 4.5mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 12mm, 13mm, 14mm, 17mm, 18mm, 20mm, 22mm, 25mm, 27mm) x Thk:(1mm, 2mm, 2.4mm, 2.5mm, 3mm, 4mm),can meet almost all...
{MATERIAL} Rubber o rings set made of high-quality commercial grade black nitrile(NBR,Buna-N),it has excellent high temperature and low temperature resistance,the working temperature range is from -40℃/-40℉ to 120℃/248℉,maintains good...
{CONVENIENT STORAGE} Assorted o rings rubber are placed in a sturdy plastic storage box, each size with detailed label paper,are stored in order of small to large for easy retrieval.It can be used for months or even years rather than buying them at a...
{WIDE APPLICATION}：Rubber O-ring kit for faucets plumbing,pressure washer, hose nozzles, sinks,filters,hydraulics fluid,auto engines, machinery bearings,pumps,boats,oils,gas control valve, spray,air,kitchen bathroom water fitting seal leak repair.A
{MULTIPLE SIZE}：Assorted o ring washer gasket assortment set contains 32 Metric size...
{INCLUDED TOOLS}：O rings Rubber kits comes with 4-Piece precision pick and hook set, includes 1-pc. full hook; 1-pc. 45-degree pick; 1-pc. 90-degree pick; 1-pc. straight pick, each is designed with high torque acetate handles and precision tips for use...
{HIGH-QUALITY MATERIAL}：Black o rings set made of high-quality commercial grade nitrile rubber (NBR) material, it has excellent high temperature and low temperature resistance, the working temperature range is from -40℉ (-40℃) to...
O-RING ASSORTMENT KIT: NEIKO introduces our Rubber O-Ring Assortment Kit. Each O-ring acts as a joint gasket to seal and protect water lines in any oil line, faucet, sink, filter, toilet, or other machinery.
VERSATILE & RELIABLE: Thanks to the NBR construction, these rubber O-rings are resistant to water, UV, lubricants, hydraulic fluids, gasoline, alkalis, and grease. Each O-ring creates a long-lasting seal that protects your devices from leaks.
DURABLE O-RING KIT: Each pliable O-ring in this set has a high-quality construction and a thick wall design to provide long-lasting durability. The rings are made of commercial-grade nitrile butadiene rubber for liquid resistance.
COMPACT SIZE: Our O-ring kit comes organized in a case by ring size and shape. Carry this seal tool set with you wherever you’ve got a leak that needs extra sealing protection and be ready to protect against leaks from water and other liquids.
Package Including: O ring kit contains 1050 PCS in 21 sizes, a wide range of sizes and quantities will meet your needs
Multiple Sizes: The o ring assortment kit contains 21 sizes, o-rings with inner diameters from 1 to 25mm and thicknesses of 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 24mm
Easy Storage: Comes in a handy plastic organizer case with sized compartments, each size comes with a label for easy picking and storage
High Quality Material: O ring kit bushings are made of commercial grade NBR material with a working temperature range of -40℉/-40℃ to 248℉/120℃, which is an excellent resistance to high and low temperatures
WIDE APPLICATION:SAE rubber o-ring kit for cars hydraulics auto engines,plumbing faucets pressure washer hose nozzles gas control valve spray air water fitting seal leak pneumatic repairs
MULTIPLE SIZE:Assorted SAE o ring assortment set contains inch size ID...
INCLUDED TOOLS:SAE O rings Rubber kits comes with 4-pcs precision pick and hook set, includes 1 pc full hook;1 pc 45-degree pick;1 pc 90-degree pick;1 pc straight pick,each is designed with handles and precision tips
Multiple sizes:O-ring assortment kit contains standard 32 metric rubber O-rings with O-rings from 4 to 50 mm O.D. and 1 to 3.5 mm thick.Also comes with a 4-piece precision pick and hook set, including 1 pc. Full Hook; 1 pc. 45 degree pick; 1 pc. 90 degree...
High quality material: O-ring bushings are made of commercial grade NBR material with a working temperature range of -40℉/-40℃ to 248℉/120℃. With excellent resistance to high and low temperatures, it is very suitable for thermal machinery...
Wide applications: O-ring classification is very suitable for faucets, motorcycles, boats, car engines, pumps, solenoid valves, meters, sensors, mechanical bearings and other accessories for sealing DIY repairs, Hook and Pick Set for clamps, wires...
Easy to use and store: Various o-ring kits, 32 sizes of o-rings are placed in order in a sturdy plastic storage box, each size comes with a detailed label paper, very easy to use, o-rings are stored in order of size, easy to retrieve and store
270 PCS HNBR O-RING ASSORTMENT** – This AC O ring kit includes 270 assorted seals made from Hydrogenated Nitrile Butadiene Rubber. Multiple sizes give you convenient replacement options for automotive A/C maintenance, repair and general sealing needs.
MADE FOR AUTOMOTIVE A/C REPAIR** – Designed for compatible car air conditioning sealing points, these HNBR O-rings can be used when servicing applicable compressor, hose and A/C line connections. Useful for DIY maintenance, garages and automotive repair...
HELPS RESTORE SEALED CONNECTIONS** – Replace worn, flattened or damaged O-rings at compatible connections. The HNBR seals are designed to sit between mating surfaces and help maintain a secure seal during automotive air conditioning servicing.
ASSORTED SIZES READY FOR REPLACEMENT** – Instead of purchasing individual seals one at a time, this HNBR O ring kit keeps multiple sizes together for common repair needs. Compare the replacement O-ring with the original seal and confirm the required...
Popular Sizes:Metric o-ring assortment kits contains the most commonly used 21 size ID x CS : 1x2mm ,2.5x1mm ,3x1mm , 4x1mm , 4.5x1mm ,5x2mm ,6x2mm ,7x2mm ,8x2 mm ,9x2 mm ,10x2mm ,12x3mm ,13x3 mm ,14x2.5 mm ,16x2 mm ,18x2 mm ,20x2 mm ,22x2 mm ,17x2.5 mm...
Wide Application:Rubber o ring kit for faucets,water plumbing, pressure washer,hose nozzles,sinks,filters,hydraulics fluid,auto engines, motorcycles, machinery bearings, pumps, boats, valve,spray,water fitting leak repair, pneumatic connection,oil,air,gas...
Material:Rubber o-rings set made of high-quality commercial grade black flexible nitrile(NBR) 70 Duro material,it has excellent high temperature and low temperature resistance,the working temperature range is from -40℃/-40℉ to 120℃/248℉,maintains...
Convenient Storage:O rings rubber are placed in a sturdy plastic storage box,each size with detailed label paper,are stored in order of small to large for easy retrieval.You can quickly find the O-Ring in the size you need without confusion
Last update on 2026-10-16 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Seals & O-Rings
Understanding Material Types
Nitrile (Buna-N): A common and cost-effective choice, offering good resistance to oils, fuels, and hydraulic fluids. It has a decent temperature range but is not ideal for exposure to ozone or UV.
Viton (FKM): Known for its excellent resistance to high temperatures, chemicals, and aggressive fluids. Viton is suitable for demanding environments but is generally more expensive.
Silicone: Offers a wide temperature range, from very low to high, and is often used in food-grade applications due to its inertness. It has good flexibility but can be less resistant to abrasion and certain chemicals compared to others.
EPDM: Excellent for outdoor use and exposure to weathering, ozone, and steam. It performs well in hot water and brake fluids but has poor resistance to petroleum-based oils.
Key Considerations for Size and Fit
Inner Diameter (ID) and Outer Diameter (OD): Ensure these measurements match the groove or shaft precisely. A mismatch can lead to improper sealing or component damage.
Cross-Sectional Diameter (CS): This is the diameter of the O-ring itself. It's critical for fitting into the groove correctly and creating the necessary compression.
Groove Dimensions: The housing or groove where the seal will sit must be designed to accommodate the seal's dimensions and allow for proper compression upon assembly.
Application-Specific Needs
Temperature Range: Consider the minimum and maximum operating temperatures the seal will encounter. Extreme temperatures can degrade materials and cause failure.
Chemical Exposure: Identify all chemicals, solvents, or fluids the seal will come into contact with. Material compatibility charts are essential for making the right choice.
Pressure Requirements: For high-pressure systems, specialized seals or backup rings might be necessary to prevent extrusion or failure.
Dynamic vs. Static Use: Seals used in moving parts (dynamic) require different properties, like low friction and high wear resistance, than those used in stationary applications (static).
Frequently Asked Questions
What is the difference between a seal and an O-ring?
An O-ring is a specific type of seal, typically a toroidal (doughnut-shaped) loop of elastomer. A seal is a broader term for any device that prevents leakage between two mating parts, which can include O-rings, gaskets, and lip seals.
How do I measure an O-ring?
For an O-ring, you typically measure the inner diameter (ID), the outer diameter (OD), and the cross-sectional diameter (CS). The CS is the diameter of the ring's material itself. Standard measurement tools like calipers are often used.
Can I use any material for any application?
No, material selection is critical. Different materials have varying resistances to chemicals, temperatures, and pressures. Using an incompatible material can lead to premature failure and leaks.
What does 'durometer' mean for seals?
Durometer refers to the hardness of the rubber or elastomer material, measured on a scale (like Shore A). A higher durometer number indicates a harder material, which can be important for certain pressure or wear resistance requirements.
When should I consider a backup ring?
Backup rings are used in high-pressure applications or where there's a risk of extrusion. They are typically made of a harder material and placed behind the O-ring on the low-pressure side to prevent the seal from being forced into the clearance gap.
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