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OEM replacement KUPA KP-55 (Version 101) handpiece white plastic nut #520K38. guarantees professional performance, less vibration, and safe interior assembly.

KP-55 Version 101 Nut 5520K38

by Ovation Spas
$7.00 - $7.00
$7.00
$7.00 - $7.00
$7.00

This nut listed as #520K38 is a genuine replacement part from KUPA, specifically for the KP-55 handpiece “Version 101”. It serves as an internal securing component, helping maintain proper assembly integrity under high-speed rotation. The listing states: “Nut #520K38, under the “KP-55 Parts Version 101.

Features

  • OEM-correct replacement for KP-55 Version 101 — ensures compatibility and correct fit.

  • Dimensional match to manufacturer specs (OD ~18.63 mm, length ~13.39 mm).

  • Constructed from white plastic as specified by KUPA—it’s important to use the correct material to maintain fit, fit tolerances, and performance.

Installation Tips

  • onfirm your handpiece is indeed Version 101 or uses the same nut part #520K38. Using an incorrect nut may lead to improper fit or performance issues.

  • Measure your existing nut (if present) to match the spec: OD ~18.63 mm, length ~13.39 mm.

  • Ensure the internal housing, threads and mating components where the nut installs are clean, undamaged and free of debris.

  • Disconnect the handpiece from power and let it fully stop before disassembly.

  • Carefully remove the front or internal housing to access the nut location.

  • Remove the old nut, clean the threads and seating surfaces of any debris, metal shavings or lubricant residue.

  • Install the new #520K38 nut and torque it to the manufacturer’s recommended specification (if available). Avoid overtightening which could damage plastic threads or distort the nut.

  • Re-assemble the handpiece, run it unloaded (no bit) for a short test to confirm smooth operation, absence of vibration or looseness, then resume normal use.