Spring Contact Plunger (Pogo)
Bored spring-contact plunger body that fits inside test-fixture pogo pins.
This is a dimension schematic, not a manufacturing drawing. Dimensions match the catalog data; request a quote with the part code to confirm before production.
Code & Size Table
Code, dimensions and tolerance for all 10 variants.
| Code | Diameter (mm) | Length (mm) | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| KONB-PGO-01 | 1.5 | 12 | taper · ⌀0.8 | h6 | pogo plunger, hollow bore |
| KONB-PGO-02 | 2 | 14.5 | taper · ⌀1 | h6 | pogo plunger, hollow bore |
| KONB-PGO-03 | 2.5 | 17 | taper · ⌀1.2 | h6 | pogo plunger, hollow bore |
| KONB-PGO-04 | 3 | 18.5 | taper · ⌀1.5 | h6 | pogo plunger, hollow bore |
| KONB-PGO-05 | 3 | 21 | taper · ⌀1 | h6 | stepped pogo plunger, hollow bore |
| KONB-PGO-06 | 3.5 | 20 | taper · ⌀1.8 | h6 · ⌀3.5: 0/−0.008 | pogo plunger, hollow bore |
| KONB-PGO-07 | 4 | 23.5 | taper · ⌀1.5 | h6 | stepped pogo plunger, hollow bore |
| KONB-PGO-08 | 4 | 22.5 | taper · ⌀2 | h6 · ⌀4: 0/−0.008 | pogo plunger, hollow bore |
| KONB-PGO-09 | 5 | 26 | taper · knurl · ⌀1.8 | h6 | knurled pogo plunger, hollow bore |
| KONB-PGO-10 | 5 | 25 | taper · ⌀2.5 | h6 · ⌀5: 0/−0.008 | pogo plunger, hollow bore |
Prices are for approved members.
Material & Tolerance
The standard material is listed below; also available in steel, stainless, brass and aluminium. Dimensions in mm; tolerances machined to ISO. Deviations (mm) are given for the nominal diameter according to the ISO 286-2 tables; thread tolerances (6g/6H) are to ISO 965. For custom sizes/tolerances, contact us with the part code.
Manufacturing Scope
Spring Contact Plunger (Pogo) is a Connector Pins family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀1.5–5 mm, lengths 12–26 mm, standard material Brass (also steel, stainless steel or aluminium). Every variant's part code, dimension and tolerance is listed below; request a quote with the code you need.
The family is machined from ⌀5 mm bar stock; its longest variant is KONB-PGO-09 at 26 mm. Besides turning, the family requires taper turning, knurling and axial drilling (⌀0.8–2.5 mm). All of it is completed in a single setup, without the part leaving the machine.
The most slender variant is KONB-PGO-01: 12 mm long at ⌀1.5 mm, a length-to-diameter ratio of 8.0. A part this slender needs tailstock support on a conventional lathe. On a sliding-head lathe the guide bushing holds the bar right next to the cutting edge, so the part is machined without a centre.
Variants are machined to h6 tolerance; the smallest is KONB-PGO-01 (⌀1.5 mm) and the largest KONB-PGO-10 (⌀5 mm). The family includes tapered, knurled, bored, multi-step variants. Custom sizes, tolerances or materials are produced to the part code on request.
Need a size that isn't listed? We machine to your drawing — CNC contract machining. How these parts are made: What is a Swiss-type lathe?
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