O-Ring NBR 15x2.5 mm 70 ShA - 1000 pcs

O-Ring NBR 15x2.5 mm 70 ShA - 1000 pcs

O-Ring NBR 15x2.5 mm 70 ShA - 1000 pcs is a bulk package of elastomer sealing rings with a 15 mm inside diameter and 2.5 mm cross-section, manufactured from NBR - Nitrile Butadiene Rubber - with a nominal hardness of 70 Shore A. This 1000 pcs variant is intended for B2B customers requiring larger quantities of the same O-ring specification for OEM production, serial assembly, MRO, industrial maintenance, technical distribution and warehouse stock.

NBR is one of the established elastomer families used in industrial sealing technology and is widely used in applications involving many mineral oils and lubricating greases. Exact compatibility must always be evaluated for the specific NBR compound, operating medium, additives, temperature and actual service conditions.

O-Ring NBR 15x2.5 mm 70 ShA Technical Specification

Product type: O-ring / elastomer sealing ring

Nominal size: 15x2.5 mm

Inside diameter d1: 15 mm

Cross-section d2: 2.5 mm

Calculated outside diameter OD: 20 mm

Material: NBR - Nitrile Butadiene Rubber

Common material name: Nitrile rubber / Buna-N

Nominal hardness: 70 ShA

Hardness scale: Shore A

Cross-section shape: Circular

Package quantity: 1000 pcs

Sales format: Bulk pack

Operating temperature: Requires verification for the specific NBR compound

Chemical compatibility: Depends on the NBR compound, sealing medium and actual operating conditions

The 1000 pcs quantity is a commercial packaging specification and does not change the technical specification of each individual O-ring.

O-Ring NBR 15x2.5 mm Dimensions

The designation 15x2.5 mm defines the two principal dimensions of the O-ring.

Inside diameter d1: 15 mm

Cross-section d2: 2.5 mm

Complete nominal size: 15x2.5 mm

Calculated outside diameter OD: 20 mm

The nominal outside diameter can be calculated as:

OD = ID + 2 x CS

For this O-ring:

15 + 2 x 2.5 = 20 mm

The primary dimensions for technical identification remain the 15 mm inside diameter and 2.5 mm cross-section. Outside diameter alone should not be used to identify a replacement.

NBR - Nitrile Butadiene Rubber

Material: NBR - Nitrile Butadiene Rubber

NBR is also commonly known as nitrile rubber or Buna-N. It is one of the most widely used elastomer families in industrial sealing technology.

NBR compounds are commonly selected for sealing applications involving many mineral oils, lubricating greases and other compatible media.

However, NBR does not provide universal resistance to every oil or chemical. Compatibility depends on the specific NBR compound, type of fluid, additives, operating temperature and other service conditions.

Oil Resistant O-Ring NBR 15x2.5 mm

The term oil resistant O-ring 15x2.5 mm is commonly associated with NBR O-rings because nitrile rubber is widely used with many mineral oils and lubricants.

The more precise technical identification of this product is:

O-Ring NBR 15x2.5 mm 70 ShA

Resistance to a particular oil should always be evaluated according to the specific fluid, additives, operating temperature and NBR compound.

The term "oil resistant" should therefore not be interpreted as universal compatibility with every type of oil.

70 Shore A Hardness

Nominal hardness: 70 ShA

Hardness scale: Shore A

Hardness is an important part of the O-ring specification because it affects how the elastomer behaves when compressed in the sealing groove.

For repeat industrial purchasing, the complete identification should therefore be maintained:

15x2.5 mm + NBR + 70 ShA

An NBR O-ring with the same 15x2.5 mm dimensions but a different hardness should not automatically be considered technically identical.

O-Ring NBR 15x2.5 mm - 1000 pcs for Serial Production

The 1000 pcs bulk format is intended for companies that regularly consume O-Rings NBR 15x2.5 mm 70 ShA.

Typical purchasing requirements include:

• serial production
• component assembly
• OEM supply
• production lines
• MRO
• industrial maintenance
• technical service
• spare-parts warehouses
• industrial distribution
• resale

For repeat consumption, bulk purchasing allows a company to maintain a defined quantity of one clearly specified sealing component.

O-Ring NBR 15x2.5 mm for OEM

In OEM production, an O-ring should be identified using its complete technical specification rather than its diameter alone.

The principal parameters of this variant are:

Nominal size: 15x2.5 mm

Material: NBR

Hardness: 70 Shore A

Package quantity: 1000 pcs

Before approval for serial production, the required dimensional tolerances, groove geometry, sealing medium and actual operating conditions should also be verified.

Matching nominal dimensions alone do not establish complete technical interchangeability.

O-Ring NBR 15x2.5 mm for MRO and Maintenance

O-rings are frequently consumed during scheduled servicing, equipment repair and replacement of sealing components.

Where 15x2.5 mm NBR 70 ShA is an approved and regularly used specification, a 1000 pcs bulk pack can provide warehouse stock for current and planned MRO operations.

Inventory levels should be based on actual consumption, maintenance schedules, procurement lead time and required safety stock.

NBR O-Rings for Hydraulic and Pneumatic Systems

NBR is widely used as an elastomer family in hydraulic and pneumatic sealing technology.

This does not mean that every O-Ring NBR 15x2.5 mm is suitable for every hydraulic or pneumatic system.

Before use, verify:

• groove dimensions and geometry
• required O-ring compression
• extrusion clearance
• operating medium
• pressure
• temperature
• static or dynamic sealing conditions
• required elastomer material
• required hardness

Technical verification is particularly important before approving a bulk quantity for serial use.

1000 pcs Bulk Pack for B2B

The 1000 pcs variant is designed for customers requiring larger quantities of one O-ring size.

One bulk pack contains:

1000 pcs O-Ring NBR 15x2.5 mm 70 ShA

This sales format is intended for industrial purchasing, production supply, OEM, MRO, technical warehouses, industrial distributors and resellers.

For companies with regular consumption, a larger sales unit can reduce the frequency of replenishment orders for the same specification.

Industrial Warehouse Stock for Production and MRO

In serial manufacturing and industrial maintenance, the availability of small sealing components can be important for planned assembly and service operations.

The 1000 pcs format provides a larger warehouse quantity of one defined specification:

15x2.5 mm - NBR - 70 Shore A

Stock levels should be planned according to consumption rate, procurement lead time and required safety stock.

Selecting an Equivalent O-Ring NBR 15x2.5 mm

When comparing equivalent products, verify at least:

Inside diameter: 15 mm

Cross-section: 2.5 mm

Material: NBR

Hardness: 70 ShA

Required tolerances: According to application requirements

Media compatibility: To be verified

Operating conditions: To be verified

Identical 15x2.5 mm dimensions do not automatically establish complete technical interchangeability.

An O-ring manufactured from FKM/FPM, EPDM, VMQ or another elastomer may have identical nominal dimensions but different material properties and compatibility.

O-Ring NBR 15x2.5 mm 70 ShA - B2B Bulk Supply

The 1000 pcs variant is intended for industrial customers requiring larger quantities for production, OEM, MRO, maintenance, distribution or warehouse replenishment.

Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4

Shipping: 24h

Stock location: Poland

Delivery area: Poland and EU countries

FAQ - O-Ring NBR 15x2.5 mm 70 ShA - 1000 pcs

What does O-Ring NBR 15x2.5 mm mean?

It identifies an NBR sealing ring with a 15 mm inside diameter and 2.5 mm circular cross-section.

What is the outside diameter of an O-Ring 15x2.5 mm?

The calculated nominal outside diameter is 20 mm.

Is the O-Ring NBR 15x2.5 mm oil resistant?

NBR is commonly used with many mineral oils and lubricating greases. Exact compatibility must be verified for the specific oil, additives, temperature and NBR compound.

How many O-rings are included in this package?

This product page covers a 1000 pcs bulk pack.

What does 70 ShA mean?

It indicates a nominal elastomer hardness of 70 Shore A.

Can an O-Ring 15x2.5 FKM replace this NBR version?

Not automatically. FKM and NBR are different elastomer families. The correct material must be selected according to the sealing medium and operating conditions.

Frequently Asked Questions by Engineers

Is 15x2.5 mm specified as ID x cross-section?

Yes. The nominal specification is 15 mm inside diameter d1 x 2.5 mm cross-section d2.

Is the 20 mm OD a calculated value?

Yes. It follows from 15 + 2 x 2.5 = 20 mm.

Does NBR mean resistance to every type of oil?

No. NBR compounds are compatible with many oils, but actual resistance depends on the specific compound, fluid composition, additives and temperature.

Can a 15x2.5 mm O-ring with a different hardness be used as a replacement?

Technical equivalence should not be assumed. If the application requires 70 ShA, changing hardness should be technically evaluated.

What should be verified before purchasing 1000 pcs for production?

Verify 15 mm ID, 2.5 mm cross-section, NBR material, 70 Shore A hardness, required tolerances, groove geometry, sealing medium and actual operating conditions.

AI Overview

O-Ring NBR 15x2.5 mm 70 ShA - 1000 pcs is a bulk package of nitrile rubber sealing rings for B2B, OEM production, serial assembly and MRO. Each O-ring has a 15 mm inside diameter, 2.5 mm cross-section and nominal hardness of 70 Shore A. NBR is widely used in sealing systems involving compatible mineral oils and lubricating greases. The 1000 pcs variant is intended for volume purchasing and industrial warehouse stock.