Metric Size, Steel
Indexing Plungers
Lock-out or Non Lock-out Type
GN 817.9


RoHS Compliant
 

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Specification
Information
Threaded body: Zinc die-cast, matte black powder coated finish
Plunger pin: Stainless steel, European Standard No. 1.4305 (American Standard Series 303)
Countersunk screw: DIN 7991, Stainless Steel European Standard No. 1.4301 (American Standard Series 304)
Knob: Technopolymer plastic (Polyamide PA), black matte finish or red RAL 3000 matte finish

Type B - Lock-out type
Type C - Non lock-out type

GN 817.9 indexing plungers have been designed so that special versions of the indexing pins can also be made economically in smaller unit quantities.
If required, the indexing pins can be machined or made by the user as shown in the drawing above. They are assembled with a countersunk screw and can therefore be re-assembled several times. All parts are supplied in a non-assembled set.
Type C indexing plungers are used for such applications where the plunger has 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 this position.
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Dimensions in:

millimeters
(inches)

Part Number d1
Pin 
-.02/-.04
Bore
-.03/-.08
l1 l2
max. stroke
b d2 d3 d4 d5 d6 k l3 l4 l5 l6 l7 l8 t Spring Load N
Type B
Type C
Initial End
817.9-7-6-B
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817.9-7-6-C
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7
(.28)
6
(.24)
8
(.31)
13
(.51)
4.3
(.17)
23
(.91)
5
(.20)
M3 x .5 34
(1.34)
22
(.87)
20
(.79)
48
(1.89)
22
(.87)
6
(.24)
31
(1.22)
17.6
(.69)
7
(.28)
7 6.5
817.9-7-9-B
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817.9-7-9-C
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7
(.28)
9
(.35)
11
(.43)
13
(.51)
4.3
(.17)
23
(.91)
5
(.20)
M3 x .5 34
(1.34)
22
(.87)
20
(.79)
48
(1.89)
22
(.87)
6
(.24)
27.5
(1.08)
21.1
(.83)
7
(.28)
7 6
817.9-8-8-B
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817.9-8-8-C
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8
(.31)
8
(.31)
10
(.39)
16
(.63)
5.3
(.22)
28
(1.10)
6
(.24)
M4 x .7 38
(1.50)
26
(1.02)
25
(.98)
58
(2.28)
26
(1.02)
8
(.31)
39
(1.54)
20.6
(.81)
8
(.31)
8 8.5
817.9-8-12-B
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817.9-8-12-C
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8
(.31)
12
(.47)
14
(.55)
16
(.63)
5.3
(.22)
28
(1.10)
6
(.24)
M4 x .7 38
(1.50)
26
(1.02)
25
(.98)
58
(2.28)
26
(1.02)
8
(.31)
34
(1.34)
25.6
(1.00)
8
(.31)
8 8.5
817.9-10-12-B
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817.9-10-12-C
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10
(.39) 
12
(.47)
14
(.55)
16
(.63)
5.3
(.22)
28
(1.10)
7.5
(.30)
M4 x .7 38
(1.50)
26
(1.02)
30
(1.18)
58
(2.28)
26
(1.02)
8
(.31)
39.2
(1.55)
25.4
(1.00)
8
(.31)
8 9.5