Home » Lower Packing Nut-Ultra 400, 390st,490st

Graco 176751 Replacement Lower Packing Nut-Ultra: 400, 390st, 490st

SKU: 19-2628
In stock
Replacement for: Graco 176-751, Graco 176751
Lower Packing Nut-Ultra 400, 390st,490st
$17.94
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Email (914) 241-2211

The Bedford 19-2628 is a compatible replacement for Graco parts 176-751 and 176751 ā€” the lower packing nut-ultra used in Graco spray equipment. The packing nut threads down on the packing stack to set its compression ā€” it is the adjustment that keeps the throat sealing as packings wear, and on many pumps it doubles as the reservoir for throat seal liquid. Compatible with Graco 190 ES (st-style), Graco 290 Easy, Graco 390 st, Graco 390 sts, Graco 395 st, Graco 450 st and other compatible equipment.

Common reasons for replacement:

  • Stripped or galled threads from repeated adjustment
  • Worn wrench flats after years of service
  • Packing compression no longer holding between adjustments
  • Renewed during a full pump repack

Manufactured to OEM-equivalent dimensions for proper fit and performance.

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