OSK™ Industrial Metric O-Ring Service Package includes five 500-piece Buna-N 70 metric O-Ring kits covering 1mm, 1.5mm, 2mm, 2.5mm, and 3mm cross sections. Each kit comes in its own organized case, giving shops, service trucks, and maintenance teams fast access to common small metric O-Rings. This package also includes FN LUBE PLUS silicone lubricant and the Olypsys® Pro-Grid A4 for easier O-Ring measurement, helping reduce downtime, avoid wrong-size ordering, and keep repairs moving.
Benefits
The OSK™ Industrial Metric O-Ring Service Package is built for repair teams that need the right metric O-Ring fast. Instead of searching through loose parts or waiting on one seal, this package keeps five common metric cross sections ready in separate cases.
Customer benefits include:
- Helps reduce downtime during metric equipment repairs
- Keeps common 1mm, 1.5mm, 2mm, 2.5mm, and 3mm cross section O-Rings on hand
- Saves extra trips to the parts counter
- Helps service trucks and maintenance teams finish more repairs in one visit
- Includes FN LUBE PLUS to help with O-Ring installation
- Includes Olypsys® Pro-Grid A4 to help measure and identify O-Rings with more confidence
- Keeps each cross section separated for faster size selection
- Gives shops a refillable metric O-Ring system, not just a one-time assortment
This package is not just a box of rubber parts. It is a repair support system that helps your team measure, select, lubricate, install, and restock common metric Buna-N O-Rings.
Correct Size Coverage
This package includes five separate metric Buna-N 70 O-Ring kits. Each kit contains 500 O-Rings in 36 sizes.
Total O-Ring count: 2,500 pieces in 180 Different Sizes
Material: Buna-N Nitrile
Durometer: 70 Shore A
Kit type: Metric
Storage: Five separate organized plastic cases
Included accessory: FN LUBE PLUS 2 oz silicone lubricant
Included measuring tool: Olypsys® Pro-Grid A4 Letter
Size coverage by kit:
| Kit | Cross Section | ID Range | Total Pieces | Case |
|---|
| 1mm CS Metric O-Ring Kit | 1mm | 2.5mm ID to 20mm ID | 500 pcs | Separate case |
| 1.5mm CS Metric O-Ring Kit | 1.5mm | 2.5mm ID to 20mm ID | 500 pcs | Separate case |
| 2mm CS Metric O-Ring Kit | 2mm | 2.5mm ID to 20mm ID | 500 pcs | Separate case |
| 2.5mm CS Metric O-Ring Kit | 2.5mm | 4mm ID to 21.5mm ID | 500 pcs | Separate case |
| 3mm CS Metric O-Ring Kit | 3mm | 4mm ID to 21.5mm ID | 500 pcs | Separate case |
Common quantity pattern by size:
- Many high-use sizes include 20 pieces per size
- Mid-range and larger sizes include 10 to 15 pieces per size
- Each cross section is organized in its own case to reduce mix-ups
This gives the customer strong coverage in small metric O-Rings often used in machinery, pumps, valves, hydraulic components, pneumatic equipment, imported equipment, and general shop repair.
SAE, Metric, or Specialty Kit Type
This is a metric O-Ring service package.
It is not an AS568 inch kit and it is not a SAE Boss or flange kit. The O-Rings are sized by metric cross section and inside diameter.
This makes the package a good fit for:
- Imported equipment
- Metric hydraulic and pneumatic parts
- Metric pumps and valves
- Metric repair work
- General industrial maintenance
- Service trucks that work on mixed equipment
Material Compatibility
The O-Rings in this package are Buna-N 70 Durometer, also called NBR or nitrile.
Buna-N 70 is a common general-purpose O-Ring material used for many shop and equipment repairs. It is often selected for petroleum-based oils, mineral oil-based lubricants, grease, many hydraulic fluids, aliphatic hydrocarbons, silicone oils, and water up to about 80°C.
Good common uses include:
- Petroleum oils
- Grease
- Many hydraulic fluids
- Mineral oil-based lubricants
- Silicone oils and greases
- General shop repair
- Equipment maintenance
Buna-N is not recommended for every fluid. It should not be assumed compatible with strong acids, ketones, ozone-heavy exposure, brake fluids, or harsh chemical service without checking compatibility first.
For critical applications, confirm the required material, hardness, temperature range, pressure, certification, and traceability before use.
Durometer and Seal Performance
These O-Rings are 70 Durometer Buna-N.
70 Duro means the O-Ring has a common general-purpose hardness. It gives a good balance of flexibility, sealing ability, and durability for many static and light dynamic sealing applications.
Why this matters:
- Softer than 90 Duro, so it can seal well in many standard grooves
- Flexible enough for common maintenance work
- Useful for general repair where Buna-N is compatible
- Helps reduce leaks when the correct size and material are used
For high-pressure hydraulic fittings where extrusion resistance is a major concern, a 90 Duro O-Ring may be a better choice. This package is best for general metric repair and maintenance, not as a replacement for every high-pressure specialty seal.
Best Uses
This metric O-Ring service package is a strong fit for:
- Maintenance shops
- Service trucks
- Hydraulic repair shops
- Farm and equipment repair
- Manufacturing maintenance
- Automotive repair
- Imported machinery repair
- Pump and valve repair
- Pneumatic equipment repair
- General shop repair
- OEM maintenance areas
- Parts counters that support metric equipment
This kit is not ideal for unknown chemicals, critical aerospace, medical, food contact, or highly specified applications unless the material, certification, compound, and traceability requirements are confirmed before use.
Quality and Reliability
A useful O-Ring kit should help customers make faster, better repairs. This package is built around that idea.
The customer gets:
- Known material: Buna-N Nitrile
- Known hardness: 70 Durometer
- Five common metric cross sections
- Organized size coverage
- Five separate cases to reduce mix-ups
- FN LUBE PLUS for easier installation
- Olypsys® Pro-Grid A4 for better measurement support
- Refill support from The O-Ring Store LLC
- Support from a team that works with O-Rings and seals every day
The O-Ring Store LLC is ISO9001:2015 certified. That matters because better process control helps customers get reliable products, clear sizing, and consistent support.
A better kit helps reduce wrong-size repairs, wasted time, and repeat failures.
Organized Storage Case
Each cross section comes in its own plastic case.
That means the 1mm, 1.5mm, 2mm, 2.5mm, and 3mm O-Rings are kept separate. This makes it easier to find the right size during a repair and helps prevent mixing close-looking O-Rings.
The organized layout helps customers:
- Find the right O-Ring faster
- Keep service trucks cleaner
- Restock only the sizes that run low
- Reduce mistakes during urgent repairs
- Store metric O-Rings by cross section
Piece Count and Refill Value
This package includes 2,500 total O-Ringsi in 180 Different Sizes.
Breakdown:
- 500 pieces in the 1mm cross section kit
- 500 pieces in the 1.5mm cross section kit
- 500 pieces in the 2mm cross section kit
- 500 pieces in the 2.5mm cross section kit
- 500 pieces in the 3mm cross section kit
- FN LUBE 2 oz O-Ring lubricant
- O-Ring pick
- Olypsys® Pro-Grid for easier O-Ring measuring and identification
The real value is not just the piece count. The value is having the right metric sizes in useful quantities, separated by cross section, with lube and measurement support included.
When compartments run low, customers can reorder replacement O-Rings from The O-Ring Store LLC. That helps keep the package working over time without buying a full new kit every time common sizes are used first.
Price and Buying Value
This package is a smart purchase for shops that lose time looking for metric O-Rings or waiting on one seal to finish a repair.
The value comes from:
- Less downtime
- Fewer emergency supply runs
- Better organization
- Faster size selection
- Easier installation with FN LUBE PLUS
- Better measurement confidence with Olypsys® Pro-Grid A4
- Refill options when common sizes run low
For a service truck, maintenance shop, or repair counter, this package can pay for itself by helping complete repairs faster and reducing the frustration of not having the right metric O-Ring on hand.
Before You Buy
Before ordering, confirm that this package matches your repair needs.
Check the following:
- Match the O-Ring ID and cross section to the gland or original O-Ring
- Match Buna-N material to the fluid, temperature, pressure, and environment
- Do not assume all rubber materials work in every fluid
- Use FN LUBE PLUS only where silicone lubricant is compatible with the application
- Use Olypsys® Pro-Grid A4 to help measure O-Rings when the size is hard to confirm
- For critical applications, confirm material, hardness, certification, and traceability before use
Why Buy From The O-Ring Store LLC
The O-Ring Store LLC is an ISO9001:2015 certified O-Ring and seal distributor. We make getting O-Rings easy.
Customers get more than a kit. They get clear sizing, practical product information, refill options, measurement support, and help from a team that works with O-Rings and seals every day.
This package gives customers speed, accuracy, service, and long-term refill value. That is what helps shops reduce downtime and keep repairs moving.
FAQ
What is this O-Ring package used for?
This package is used for metric O-Ring repair and maintenance. It is a good fit for service trucks, maintenance shops, hydraulic repair, pumps, valves, and imported equipment.
Is this kit SAE or metric?
This is a metric O-Ring package. Sizes are based on metric inside diameter and metric cross section.
What material are the O-Rings?
The O-Rings are Buna-N Nitrile, 70 Durometer. Buna-N is a common general-purpose material for oil, grease, many hydraulic fluids, and shop repair.
Can I use this kit with hydraulic oil?
Buna-N is commonly used with many petroleum-based hydraulic oils. Always confirm compatibility for your specific fluid, temperature, and pressure.
Can I refill the kit?
Yes. Customers can reorder replacement O-Rings from The O-Ring Store LLC when compartments run low.
Why is the Olypsys® Pro-Grid A4 included?
The Olypsys® Pro-Grid A4 helps customers measure and identify O-Rings more accurately, which can reduce wrong-size orders and improve repair confidence.
Why is FN LUBE PLUS included?
FN LUBE PLUS helps with O-Ring installation by reducing friction during assembly. Confirm silicone lubricant compatibility before use.
