GN 817.3 Indexing Plungers Steel, for Precision Locating, with Top Mount Flange, with Cylindrical Plunger Pin


Product description


GN 817.3 indexing plungers make highly accurate positioning possible, by utilizing DIN 172 / DIN 179 press-fit drill bushings as a guide.

The bushings are used to guide the plunger pin as well as for the indexing bore. The plunger pins and bushings are hardened and ground. Larger guide lengths further increase the precision.

The lock-out type C is used for applications where the plunger pin needs to stay in its retracted position. To achieve this, the knob is rotated by 90 degrees after being retracted. A notch keeps the plunger in the retracted position.


Steel, blackened finish

Plunger pin
Steel, hardened and ground

Technopolymer (Polyamide PA)
  • Temperature resistant up to 230 °F (110 °C)
  • Black, matte finish
  • Not removable

RoHS compliant


Press-fit drill bushings DIN 172 (with flange)
Press-fit drill bushings DIN 179 (without flange)

Technical drawing

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GN 817.3 Steel Indexing Plungers, for Precision Locating, with Top Mount Flange, with Cylindrical Plunger Pin sketch

Part Options / Table


BNon lock-out
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Dimensions in: Inch (change to Metric)
Pin -0.0004
l3bd2d3d4kl4l5l6Spring load ≈

0.240.710.350.350.510.910.171.340.911.770.240.981.35 lbf (6 N)5.62 lbf (25 N)
0.240.940.350.590.510.910.171.340.911.770.240.981.35 lbf (6 N)5.62 lbf (25 N)
0.310.790.390.390.631.100.221.501.022.010.311.061.91 lbf (8.5 N)6.29 lbf (28 N)
0.311.020.390.630.631.100.221.501.022.010.311.061.91 lbf (8.5 N)6.29 lbf (28 N)
0.390.940.470.470.631.100.221.501.022.010.311.062.14 lbf (9.5 N)8.54 lbf (38 N)
0.391.260.470.790.631.100.221.501.022.010.311.062.14 lbf (9.5 N)8.54 lbf (38 N)

Build & Price

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Total US Dollars (net)
In stock: 1
In stock
Please note our quantity discounts (US Dollars).
≥ 500$20.22
Prop 65: Not compliant
Cancer and Reproductive Harm -
RoHS: Compliant
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Weight: 0.154 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
All Prices are in US Dollars. Taxes Not Included.

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