Caterpillar 5P3620 O-Ring is an O-ring available from WQC Parts.
This listing uses Hercules part number CTC-5P3620. Catalog description: OR-70NBR-5.875x1/4-C/S(5).
Product Details
- Hercules part number: CTC-5P3620
- Product type: O-ring or sealing component
- Reference brand/application: Caterpillar
- Approximate weight: 0.056 lb
Understanding This Part
- Material code NBR: nitrile rubber (Buna-N)
- Durometer: 70 (hardness value in the catalog description)
An O-ring is selected by its inside diameter, cross-section and material. Match all three to the groove and the specified application; a matching part number should be checked before substituting a different compound.
Nitrile is also known as Buna-N. Match the compound to the specified fluid and service conditions.
Durometer describes material hardness: a higher reading means a harder material on the same scale. It is not a pressure rating.
Fitment Verification
Before ordering, confirm the CTC-5P3620 reference against your OEM reference number, machine model, cylinder location, bore and rod size, pump/motor series, and serial-number range. Manufacturer names and part numbers are used for identification and fitment reference only. If you are unsure, compare the old parts, measurements, and parts-book callout before installation.