Graco 555664 Buna-N O-Ring -228
$2.82
Available to Order
Genuine Graco O-ring, part number 555664.
- Graco part number 555664
- Genuine OEM Graco part
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Buna-N O-Ring -228 – Graco Part 555664
Compatible Systems
- Equipment whose Graco parts list calls for part number 555664
Graco part number 555664 is the Graco 555664 Buna-N O-Ring -228, an O-ring. An o-ring is a round elastomer sealing ring that closes the gap between two mating parts; it is a wear item in pumps, valves and fittings.
What the Terms in the Part Name Mean
- O-ring: Round-section elastomer sealing ring.
- Buna-n: Nitrile rubber seal material.
Before You Order
- Match the part number exactly: seals of similar size can differ in profile or material.
- Check your repair manual for whether related seals should be replaced at the same time.
- Have your equipment model, and the serial number if available, ready if you contact us for help.
Service Notes
- Follow the pressure relief and lock-out steps in your Graco manual before servicing any pump, valve, applicator or electrical part.
Frequently Asked Questions
Graco 555664 Buna-N O-Ring -228 is an O-ring. An o-ring is a round elastomer sealing ring that closes the gap between two mating parts; it is a wear item in pumps, valves and fittings.
Look up the part number in your Graco parts list or equipment manual and compare it with 555664. If your list shows a different number, or you are not sure which part you need, send us the equipment model and what you are replacing and we will help match it.
Round-section elastomer sealing ring.
The equipment model and serial number, the part number from your manual or parts diagram, a photo of the part you are replacing and a short description of the job. With those we can confirm whether the 555664 is the right number.
Yes. It is sold under Graco part number 555664 as a genuine OEM Graco part.
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