By RichPen

RichPen Needle Locknut 29711

$4.00 USD
$4.00 USD
Shipping calculated at checkout.
Brand: RichPen
Availability: Out of stock
SKU: 29711
Rear view of RichPen Needle Locknut 29711 showing the needle opening
$4.00 USD
$4.00 USD
RichPen Airbrush Replacement Part

RichPen Needle Locknut 29711 for Apollo 112A, 112B and 113C Airbrushes

Replace a worn, damaged, or missing needle locknut in a compatible RichPen Apollo airbrush with the RichPen Needle Locknut 29711. This internal replacement component is listed for the RichPen Apollo 112A, Apollo 112B, and Apollo 113C airbrushes.

Key Features

  • Replacement needle locknut for compatible RichPen Apollo airbrush models.
  • Compatible with Apollo 112A, Apollo 112B, and Apollo 113C airbrushes.
  • Manufacturer SKU 29711 provides an exact reference for selecting the correct internal replacement component.
  • Part of the rear needle assembly used to help hold the airbrush needle securely in position.
  • Textured outer surface supports finger adjustment during airbrush disassembly and reassembly.
  • This listing includes the needle locknut only, not the needle, handle, needle support, spring, or complete airbrush.

Product Specifications

Brand RichPen
Product Name Needle Locknut
Manufacturer SKU 29711
Product Type Replacement airbrush needle locknut
Compatible Series RichPen Apollo
Compatible Models RichPen Apollo 112A, Apollo 112B, and Apollo 113C
Installation Area Rear internal needle assembly
Visible Finish Silver-colored
Included Component 1 replacement needle locknut
Country of Origin Japan

Compatible RichPen Apollo Airbrushes

The RichPen Needle Locknut 29711 is listed for the RichPen Apollo 112A 0.2mm gravity-feed airbrush, RichPen Apollo 112B 0.2mm gravity-feed airbrush, and RichPen Apollo 113C 0.3mm gravity-feed airbrush.

Confirm both the airbrush model and manufacturer SKU before ordering. Needle locknuts from different airbrushes may appear similar while using different threads, openings, lengths, or fitting requirements.

Part of the Rear Needle Assembly

The needle locknut is located within the rear section of the compatible airbrush. It is used as part of the mechanism that holds the needle so the trigger assembly can move it forward and backward during spraying.

Correct installation helps maintain dependable needle movement and paint control. A loose, damaged, or missing locknut may prevent the needle from moving correctly with the trigger.

When the Needle Locknut May Need Replacement

  • The original needle locknut is missing after maintenance.
  • The internal threads are worn, stripped, or damaged.
  • The locknut no longer holds the needle securely.
  • The textured outer surface is damaged and difficult to grip.
  • The component is bent, cracked, or no longer seats correctly.
  • The needle slips even after correct adjustment and cleaning.

Product Notice: This listing includes one RichPen Needle Locknut 29711 only. The airbrush, needle, handle, needle support, needle spring, spring screw, and other internal components are not included.

Compatibility Notice: Compatibility is confirmed for the RichPen Apollo 112A, Apollo 112B, and Apollo 113C. Do not select an internal airbrush component based only on visual similarity.

Installation and Inspection Guidance

  • Confirm the exact RichPen Apollo airbrush model.
  • Remove the rear handle carefully before accessing the needle assembly.
  • Work over a clean surface so the small locknut is not lost.
  • Inspect the needle and nearby components for dried paint or damage.
  • Begin threading the locknut carefully without forcing it.
  • Insert and position the needle gently before securing the locknut.
  • Tighten only enough to hold the needle securely.
  • Confirm smooth trigger and needle movement after reassembly.

Check the Needle Before Reassembly

Inspect the compatible needle for bending, scratches, dried paint, or tip damage before securing it with the replacement locknut. A damaged or dirty needle may continue to affect trigger movement and spray performance.

Clean reusable components with an airbrush cleaner compatible with the paint being removed. Allow all parts to dry before reassembling and testing the airbrush.

Frequently Asked Questions

Which RichPen airbrushes use Needle Locknut 29711?
The RichPen Needle Locknut 29711 is listed for the Apollo 112A, Apollo 112B, and Apollo 113C airbrushes.
What does the needle locknut do?
It forms part of the rear needle assembly and helps hold the airbrush needle so it can move with the trigger mechanism.
Is this listing for a complete RichPen airbrush?
No. This listing includes one replacement needle locknut only. The complete airbrush and other internal components are not included.
Does Needle Locknut 29711 include a replacement needle?
No. The airbrush needle is a separate component and is not included with the replacement needle locknut.
Can this locknut be used with another RichPen model?
Compatibility is confirmed only for the RichPen Apollo 112A, 112B, and 113C. Other models may use components with different dimensions or threads.
How tightly should the needle locknut be installed?
Tighten it only enough to hold the needle securely. Do not force or overtighten the component because this may damage the threads or surrounding parts.
What can cause the needle to slip besides the locknut?
Dried paint, an incorrectly positioned needle, damaged internal parts, worn threads, or improper assembly may also prevent the needle from moving correctly.
Should the airbrush be tested after replacement?
Yes. Confirm smooth trigger and needle movement, then test the airbrush with cleaner or water before spraying paint.

View the Compatible RichPen Airbrushes

Review the RichPen Apollo 112A, RichPen Apollo 112B, or RichPen Apollo 113C before selecting this replacement needle locknut.