RS Components
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RS PRO Potentiometer Knob, Low profile Type, 21.1mm Knob Diameter, Black, 6.35mm Shaft

240 In stock for delivery within 1 working days
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Price Each (In a Pack of 5)

kr 31,864

(exc. VAT)

kr 39,83

(inc. VAT)



RS Stock No.:
COO (Country of Origin):
UnitsPer unitPer Pack*
5 - 45kr 31,864kr 159,32
50 - 245kr 28,634kr 143,17
250 - 495kr 25,602kr 128,01
500 - 995kr 17,468kr 87,34
1000 +kr 16,49kr 82,45
*price indicative

RS PRO Low Profile Potentiometer Knob

These low-profile potentiometer knobs from our own RS PRO brand are suitable for a 6.35mm shaft. With Brass bushings and a high-quality plastic casing, these potentiometer knobs are durable and practical. With a range of compatible knob skirts available, they are ideal for a variety of applications and environments.

Features and Benefits

• Resists shock, vibration, or accidental movement
• No special mounting hardware or tools required
• Made of highest quality materials
• Occupies minimum panel space


There are many different uses of a potentiometer. The three main applications of a potentiometer are:

• Comparing the emf of a battery cell with a standard cell
• Measuring the internal resistance of a battery cell
• Measuring the voltage across a branch of a circuit

How does potentiometer work?

Most potentiometer knobs are simply fixed on manually with a simple push by fitting it to the shaft. They either have a knob, screw, grub, or slider as a fixture that is used as a control element to vary the resistance between the middle terminal and either one of the outer terminals for the potentiometer.


RS PRO is our own brand range and brings you a wide range of high-quality, great value products offering you more choice. Trusted by engineers all over the world, every part of every RS PRO product has been rigorously tested against demanding industry standards; they’re only given the RS PRO seal of approval if we’re confident of their exceptional quality, which means you can be confident too.

Shaft Size6.35mm
Knob Diameter21.1mm
Knob Height11mm
Body ColourBlack
Knob TypeLow profile