Metric Size, Steel
Indexing Plungers
For Precision Locating, with Conical Plunger
GN 817.5


RoHS Compliant
 

This line drawing is movable on the page...just click and drag!
Specification
Information

Threaded body: Steel, blackened
Plunger pin: Steel, hardened and ground 
Knob: Matte black technopolymer plastic (Polyamide PA), not removable  

Type B - Non lock-out type, with plastic knob
Type C - Lock-out type

GN 817.5 indexing plungers make highly accurate positioning possible, by utilizing GN 172 / GN 179 drill bushings as a guide. The utilization of the drill bushing and either the GN 172.1 or GN 179.1 guide bushing provides two mating parts for the indexing plunger pin.
The conical shape of the indexing pin / indexing bore makes positioning virtually clearance-free and therefore highly precise.
The lock-out type is used in such applications where the plunger must not protrude continually. In that case, the knob is retracted and then turned by 90°. A notch prevents the plunger from turning by error or vibration.

CLICK ON PART NUMBER FOR PRICE (and option to add to cart)
For CAD download instructions, click
HERE
 

Dimensions in:

millimeters
(inches)

Part Number d1
Plun-
ger
h6
l1 l2
Stroke
l3 b d2 d3 d4 k l4 l5 l6 l7 l8 l9 Spring Load N
Type B Type C Min. Max. Init. End
817.5-6-18-B
Download the CAD
817.5-6-18-C
Download the CAD
6
(.24)
18
(.71)
9
(.35) 
9
(.35)
13
(.51)
23
(.91)
4.3
(.17)
34
(1.34)
23
(.91)
45
(1.77)
6
(.24)
25
(.98)
7
(.28)
9
(.35)
10
(.39)
17.5
(.69)
6 25
817.5-6-24-B
Download the CAD
817.5-6-24-C
Download the CAD
6
(.24)
24
(.94)
9
(.35) 
15
(.59)
13
(.51)
23
(.91)
4.3
(.17)
34
(1.34)
23
(.91)
45
(1.77)
6
(.24)
25
(.98)
7
(.28)
15
(.59)
16
(.63)
23.5
(.93)
6 25
817.5-8-20-B
Download the CAD
817.5-8-20-C
Download the CAD
8
(.31)
20
(.79)
10.6
(.41) 
9.4
(.37)
16
(.63)
28
(1.10)
5.3
(.21)
38
(1.50)
26
(1.02)
51
(2.01)
8
(.31)
27
(1.06)
9
(.35)
9.4
(.37)
10
(.39)
19.5
(.77)
8.5 28
817.5-8-26-B
Download the CAD
817.5-8-26-C
Download the CAD
8
(.31)
26
(1.02)
10.6
(.41) 
15.4
(.61)
16
(.63)
28
(1.10)
5.3
(.21)
38
(1.50)
26
(1.02)
51
(2.01)
8
(.31)
27
(1.06)
9
(.35)
15.4
(.61)
16
(.63)
25.5
(1.00)
8.5 28
817.5-10-24-B
Download the CAD
817.5-10-24-C
Download the CAD
10
(.39) 
24
(.94)
12.6
(.49)
11.4
(.45)
16
(.63)
28
(1.10)
5.3
(.21)
38
(1.50)
26
(1.02)
51
(2.01)
8
(.31)
27
(1.06)
11
(.43)
11.4
(.45)
12
(.47)
23.5
(.93)
11.5 40
817.5-10-32-B
Download the CAD
817.5-10-32-C
Download the CAD
10
(.39) 
32
(1.26)
12.6
(.49)
19.4
(.77)
16
(.63)
28
(1.10)
5.3
(.21)
38
(1.50)
26
(1.02)
51
(2.01)
8
(.31)
27
(1.06)
11
(.43)
19.4
(.77)
20
(.79)
31.5
(1.24)
11.5 40