Nordson® Seal Cross-Reference Guide: 40 OEM Part Numbers & Compatible Replacements

This guide provides a cross-reference listing of 40 commonly requested Nordson® seal part numbers supplied by XHH Seals as compatible aftermarket replacements. Part numbers cover module seals, pump seals, Variseal® rotary seals, service kits, O-rings, piston cups, back-up rings, platen seals, and hardware. All 40 items are available as compatible replacements. To request a quote, send your OEM part number, a photo, or the old seal sample to xhh@xhh-smartech.com.

Complete Cross-Reference Table: 40 Nordson® OEM Part Numbers

Tables organized by product category.

1. Module Seals

2. Pump Seals

3. Service Kits & Repair Kits

4. Platen Seals

5. Rotary Seals (Variseal® Type)

6. General Seals & Energizer Elements

7. Piston Cups

8. O-Rings

9. Back-Up Rings

10. Hardware & Components

How to Identify the Correct Nordson® Seal

Finding the right replacement seal starts with accurate identification. Here is a checklist for identifying the seal currently installed in your equipment:

Step 1: Locate the OEM Part Number

• Check the equipment manual or parts list
• Look for markings on the old seal itself (some seals have part numbers molded into the surface)
• Check purchase records or previous maintenance orders

Step 2: Record Physical Characteristics

If the part number is not available, document the following:

Note on color: Color may provide an initial indication of material type but should not be used as the sole basis for material identification, as color formulations vary by manufacturer and batch.

Compatibility Disclaimer

The OEM part numbers listed in this guide are provided solely for identification and cross-reference purposes. Compatibility should be confirmed based on the specific equipment model, seal dimensions, operating conditions, and application requirements. XHH Seals recommends verification before purchase, particularly for modified equipment, custom configurations, or applications involving extreme temperature, pressure, or chemical exposure.

Step 3: Document the Application Context

• Equipment model and serial number
• Seal position within the assembly
• Type of media being sealed (adhesive, solvent, air, etc.)
• Operating temperature range (if known)

Step 4: Take a Photo

Place the old seal next to a caliper showing the key measurement. A clear photo often helps identify the seal profile and key dimensions.

How to Verify Compatibility Before Ordering

Cross-referencing the part number is step one. Here is how to confirm the replacement seal will fit and function correctly:

1. Dimensional comparison

Compare the OEM seal's critical dimensions (ID, OD, CS, height) with the replacement part's specifications. All dimensions should match within the tolerances specified for the seal type.

2. Profile match

The seal cross-section profile must match: a U-cup replaces a U-cup; an O-ring replaces an O-ring. Face seal geometry must match the gland dimensions.

3. Material suitability

Confirm the replacement material is compatible with:

• The media being sealed (adhesive formulation, solvent, etc.)

• The operating temperature range

• The pressure conditions (static vs. dynamic)

• The cycle frequency (high-cycle applications may need spring-energized options)

4. Surface finish requirements

For dynamic seals (pump seals, rotary seals), confirm the mating surface finish on the piston rod or shaft is within the seal manufacturer's recommended Ra range.

5. Send for confirmation

Email the old seal photo, dimensions, and part number to xhh@xhh-smartech.com. Our engineering team will confirm dimensional compatibility before shipping.

When OEM Drawings Are Unavailable

In many cases, maintenance teams need a replacement seal but cannot access the original OEM drawing or specification. This is common when:

• Equipment has been in service for many years and documentation is lost
• The original supplier no longer provides technical drawings
• The seal has degraded beyond identification
• Equipment was purchased second-hand without documentation

How XHH Seals Handles Unspecified Replacements

XHH Seals has a systematic reverse-engineering process for these situations:

1. Sample analysis

When you send us the old seal (or even a worn fragment), our engineering team examines:

Overall geometry and profile

Critical dimensions (using optical measurement for worn parts)

Material identification using appropriate inspection methods

Surface finish and lip geometry for dynamic seals

2. Material matching

Based on the application environment and original material analysis, we select the closest matching compound from our inventory of standard and custom materials. If the original material is no longer available or can be improved, we recommend an alternative with your approval.

3. Prototype and sample approval

For complex or high-value seals, we produce a sample for your evaluation before full production. You can verify fit, function, and material performance in your actual equipment before committing to a production order.

4. Documentation

Every reverse-engineered seal is documented with dimensions, material specification, and application notes — creating a record for future reorders.

Materials Available for Compatible Replacement Seals

The following materials are available at XHH Seals for manufacturing compatible replacement seals. Material selection depends on your specific application conditions — not every material is suitable for every position.

Not sure which material you need? Send us the old seal for material analysis. We can identify the original compound and recommend the same or an upgraded alternative.

How to Request a Replacement

Getting a quote from XHH Seals is straightforward. The more information you provide, the faster we can respond.

Where to Send

• Email: xhh@xhh-smartech.com

• Website: xhhseals.com/contact

What to Expect

• Listed part numbers: Quote within 24 hours with pricing and lead time
• Custom/unlisted parts: Initial assessment within 48 hours; sample production typically 10–15 days

• Standard lead time: 10–15 days for production

FAQ: Nordson® Seal Replacement

Q: Are XHH Seals' products genuine Nordson® parts?

A: No. XHH Seals manufactures compatible aftermarket alternatives. Our products are engineered to match the dimensional specifications and performance characteristics of the original parts but are not produced by or affiliated with Nordson Corporation.

Q: Can I order by part number only, or do I need to send a sample?

A: For any of the 40 part numbers listed in this guide, you can order by part number alone. For unlisted parts or when you're unsure about the match, sending the old seal or a photo with dimensions allows us to confirm compatibility before shipping.

Q: Do you offer custom seals if my part number isn't listed?

A: Yes. XHH Seals provides custom manufacturing based on drawings, samples, or dimensional specifications. Send your requirement to xhh@xhh-smartech.com and we'll provide a quote within 48 hours.

Q: What material should I choose for high-temperature hot melt applications?

A: For hot melt adhesive systems operating above 180°C, FKM (Viton®) is recommended for elastomeric seals and virgin PTFE for face seals and rotary shaft seals. For extreme temperatures above 260°C, FFKM (perfluoroelastomer) custom compounds are available.

Q: Can you match seals for Melton® and Robatech® equipment too?

A: Yes. XHH Seals also manufactures compatible replacement seals for selected Melton® and Robatech® part numbers. Contact us with the OEM part number for compatibility confirmation.

Trademark & Compatibility Disclaimer

Nordson®, ProBlue®, Harmony®, Asymtek®, Variseal®, Turcon®, Fluoroloy®, and other trademarks mentioned herein are the property of their respective owners. Their use is solely for identification, reference, and compatibility purposes.

XHH Seals is an independent manufacturer of compatible aftermarket sealing products and is not affiliated with, authorized by, endorsed by, or sponsored by Nordson Corporation or any other trademark owner. References to OEM part numbers and product descriptions are provided exclusively to assist customers in identifying compatible replacement products and do not imply that the products supplied are genuine OEM components.