Metric Size, Steel
Indexing Plungers
For Precision Locating
GN 817.3


RoHS Compliant
 

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Specification
Information
Threaded body: Steel, blackened
Plunger pin: Steel, hardened and ground 
Pull knob version: Matte black technopolymer plastic (Polyamide PA), not removable  

GN 817.3 indexing plungers have been developed to enable precise locating when GN 770 guide bushes are used.
A plain guide bushing is used whereby the dimension l3 of the plunger determines the length of the bushing.
The precise location is, therefore, not dependent on the guide pin in the plunger, but on the accuracy of the guide bushing (bore tolerance G6) and the plunger (tolerance h7). Both components are hardened and ground. Of course, the bushing length also influences the accuracy of the positioning.
The version with rest position 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.
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HERE
 

Dimensions in:

millimeters
(inches)

Part Number d1
Plunger
h7
l1 l2
Stroke
l3 b d2 d3 d4 k l4 l5 l6 Spring Load N
Type B
Non Lock-out Type
Type C
Lock-out Type
Initial End
817.3-6-18-B
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817.3-6-18-C
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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)
6 25
817.3-6-24-B
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817.3-6-24-C
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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)
6 25
8W20LGF
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8W20LGG
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8
(.31)
20
(.79)
10
(.39) 
10
(.39)
16
(.63)
28
(1.10)
5.5
(.22)
38
(1.50)
26
(1.02)
51
(2.01)
8
(.31)
27
(1.06)
8.5 28
8W22LGF
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8W22LGG
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8
(.31)
22
(.87)
10
(.39) 
12
(.47)
16
(.63)
28
(1.10)
5.5
(.22)
38
(1.50)
26
(1.02)
51
(2.01)
8
(.31)
27
(1.06)
8.5 28
8W26LGF
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8W26LGG
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8
(.31)
26
(1.02)
10
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16
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16
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28
(1.10)
5.5
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38
(1.50)
26
(1.02)
51
(2.01)
8
(.31)
27
(1.06)
8.5 28
8W30LGF
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8W30LGG
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8
(.31)
30
(1.18)
10
(.39) 
20
(.79)
16
(.63)
28
(1.10)
5.5
(.22)
38
(1.50)
26
(1.02)
51
(2.01)
8
(.31)
27
(1.06)
8.5 28
10W22LGF
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10W22LGG
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10
(.39) 
22
(.87)
12
(.47)
10
(.39)
16
(.63)
28
(1.10)
5.5
(.22)
38
(1.50)
26
(1.02)
51
(2.01)
8
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(1.06)
9.5 38
10W24LGF
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10W24LGG
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10
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24
(.94)
12
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12
(.47)
16
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28
(1.10)
5.5
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38
(1.50)
26
(1.02)
51
(2.01)
8
(.31)
27
(1.06)
9.5 38
10W28LGF
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10W28LGG
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10
(.39) 
28
(1.10)
12
(.47)
16
(.63)
16
(.63)
28
(1.10)
5.5
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38
(1.50)
26
(1.02)
51
(2.01)
8
(.31)
27
(1.06)
9.5 38
10W32LGF
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10W32LGG
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10
(.39) 
32
(1.26)
12
(.47)
20
(.79)
16
(.63)
28
(1.10)
5.5
(.22)
38
(1.50)
26
(1.02)
51
(2.01)
8
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27
(1.06)
9.5 38