RHPL · O-RING SUPPLY REFERENCE

O-Ring RHPL-OR-0005

56.74 mm ID · 3.53 mm cross-section

RHPL part number: RHPL-OR-0005
Caterpillar equipment cross-reference: 4J-0527
Also searched as: 4J0527
Product type: O-Ring

RHPL is an independent supplier and is not affiliated with, sponsored by or an authorised dealer of Caterpillar. The equipment reference identifies the enquiry only; this listing does not offer a genuine OEM product or establish equivalence.

Generic O-ring engineering diagram: OD, ID and cross-section measurement
VERIFIED OEM REFERENCE DATA

Technical data

RHPL part numberRHPL-OR-0005
Equipment cross-reference4J-0527
Also searched as4J0527
Product typeO-Ring
Cross-section3.53 mm
Inside diameter56.74 mm
MaterialNBR / Nitrile
Hardness90 Shore A
Dash size228
Reference brandCaterpillar
AvailabilityEnquire — confirmed in quotation

Reference specification only. RHPL confirms the actual supplied product, compound and application in writing.

Technical details

4J-0527 identifies a 56.74 mm inside-diameter ring with a 3.53 mm circular section and dash-size reference 228. The OEM reference lists NBR / Nitrile and 90 Shore A. The dash number does not specify a pressure rating.

Official reference specification ↗ · checked 23 September 2026

Application / identification note

4J0527 is the compact spelling of 4J-0527, not a separate product. Verify the sealing location and gland dimensions. Other rings with the same cross-section in this family have different inside diameters and are not interchangeable on that basis.

Ordering information

Send RHPL part number RHPL-OR-0005, equipment cross-reference 4J-0527, quantity, equipment make/model and serial number if available. Include application, fluid and known seal dimensions. For repeat orders, include the earlier accepted quotation and any changes.

Compatibility confirmation

Compatibility must be confirmed against equipment model, serial number and application before supply. The RHPL code is our catalogue identification, not evidence of OEM manufacture, approval or interchangeability. The listing does not establish a machine-specific fitment or genuine-OEM provenance. The offer identifies the supplied item and accepted specification.

Questions about 4J-0527

Is 4J0527 the same reference?

Yes. Both spellings identify this single 4J-0527 record and canonical page.

What size should I check against my gland?

The listed reference is 56.74 mm ID × 3.53 mm cross-section, dash 228. Confirm the gland, tolerances and actual offered seal before ordering.

Does 90 Shore A establish the working pressure?

No. Clearance, temperature, compound, gland support and service conditions must be assessed together.

Related O-Rings

Other reference sizes; these are not confirmed substitutes.

O-Ring · Caterpillar reference

RHPL-OR-0001

Equipment cross-reference: 4J-5267
Also searched as 4J5267

Inside diameter
24.99 mm
Cross-section
3.53 mm
Reference material
NBR / Nitrile · 90 Shore A
Dash size
214
Request quote →
O-Ring · Caterpillar reference

RHPL-OR-0002

Equipment cross-reference: 4J-0520
Also searched as 4J0520

Inside diameter
32.92 mm
Cross-section
3.53 mm
Reference material
NBR / Nitrile · 90 Shore A
Dash size
219
Request quote →
O-Ring · Caterpillar reference

RHPL-OR-0003

Equipment cross-reference: 4J-0522
Also searched as 4J0522

Inside diameter
37.69 mm
Cross-section
3.53 mm
Reference material
NBR / Nitrile · 90 Shore A
Dash size
222
Request quote →
O-Ring · Caterpillar reference

RHPL-OR-0004

Equipment cross-reference: 4J-0524
Also searched as 4J0524

Inside diameter
47.22 mm
Cross-section
3.53 mm
Reference material
NBR / Nitrile · 90 Shore A
Dash size
225
Request quote →

Related hose and fitting products

Send the reference. Confirm the application.

RHPL is an independent manufacturer and supplier. OEM names and part numbers are used for identification and cross-reference purposes only. Product compatibility is subject to technical confirmation. Third-party trademarks remain the property of their respective owners.

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