RS PRO 17.6 mm Knob Diameter Black Potentiometer Knob Cap for 21 mm Shaft Circular

View all Potentiometer Knobs
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Subtotal (1 pack of 5 units)*

€9.32

(exc. VAT)

€11.465

(inc. VAT)

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In Stock
  • 1,175 unit(s) ready to ship from another location
  • Plus 1,500 unit(s) shipping from 15 June 2026
  • Plus 1,500 unit(s) shipping from 10 August 2026
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Units
Per unit
Per Pack*
5 - 20€1.864€9.32
25 - 45€1.768€8.84
50 - 95€1.628€8.14
100 - 195€1.51€7.55
200 +€1.382€6.91

*price indicative

RS Stock No.:
463-8542
Distrelec Article No.:
304-03-236
Manufacturer:
RS PRO
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Brand

RS PRO

Product Type

Potentiometer Knob Cap

Shaft Size

21mm

Shaft Type

Circular

Knob Diameter

17.6 mm

Knob Height

5mm

Colour

Black

For Use With

Shaft Knob

Standards/Approvals

RoHS

Material

Plastic

Knob Type

Cap

COO (Country of Origin):
TW

RS PRO Black Potentiometer Knob Cap for 21 mm Shaft


These RS PRO potentiometer caps are designed to cover collet knobs that mount onto potentiometer shafts. This gives you fine control of the voltage in your circuit. The caps are made of diecast, durable plastic for longevity and each one has brass brushing, which provides a secure and long-lasting connection.

You can use these potentiometer caps to protect the rotational knob of your device from shock, vibration and accidental movement. The caps are easy to fit – they simply push onto the knob so you don't need special mounting tools or hardware.

This product has a Restriction of Hazardous Substances (RoHS) certificate, so contains only minimal levels of any harmful substances. The caps have been handled and packed in accordance with electrostatic control standards ANSI/ESD S20.20:2014 and BS EN 61340-5-1:2007. These assure they're safe to use.

Features and Benefits


• Black body colour

• For use with collet knob

• Knob height of 5 mm

• Shaft size of 21 mm

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