

The Graco 181684 Nut Packing is an OEM packing nut used to secure and compress seal packings inside compatible Graco pump fluid sections for leak‑free performance.
The Graco 181684 Nut Packing is a genuine OEM packing nut designed to secure and compress internal packing stacks in compatible Graco fluid section assemblies, helping maintain seal integrity and prevent leaks under pressure. :contentReference[oaicite:2]{index=2}
| Feature | Details |
|---|---|
| Part Number | 181684 |
| Type | Packing Nut |
| Purpose | Secures packing stacks & seals |
| OEM Part | Yes (Graco) |
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