Inch and Metric Size, Phenolic Plastic
Revolving Ball Knobs
Long Shoulder Type, with Stainless Steel Threaded Spindle
GN 319.5
GN 319.5
RoHS Compliant

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GN 319.2
Specification
Information

Hand piece: Black phenolic plastic
(Duroplast PF)
Threaded spindle: Stainless steel, European Standard No. 1.4305 (American Standard Series 303), matte shot-blasted finish

Shipping

Revolving ball knobs GN 319.5 can be utilized instead of revolving handles i.e. with handwheels.
Revolving ball knobs have the same assembly dimensions as the handles DIN 39, DIN 98, and GN 598.
Maximum heat resistance:  110°C (230°F).
For use on this handle: DIN 911 hex keys available.
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Inch Table

Dimensions in:

inches
(millimeters)

Part
Number
d1
d2
Thread
d3
l1
l2
l3
Int. Hex
A/F
.98
(25)
1/4-20
.39
(10)
.43
(11)
1.48
(37.5)
.59
(15)
.118
(3)
1.26
(32)
5/16-18
.51
(13)
.51
(13)
1.89
(48)
.75
(19)
.157
(4)
1.57
(40)
3/8-16
.63
(16)
.55
(14)
2.40
(61)
.94
(24)
.197
(5)
1.97
(50)
1/2-13
.79
(20)
.83
(21)
3.07
(78)
1.22
(31)
.236
(6)
 
Metric Table

Dimensions in:

millimeters
(inches)

Part
Number
d1
d2
Thread
d3
l1
l2
l3
Int. Hex
A/F
25
(.98)
M6 x 1.0
10
(.39)
11
(.43)
37.5
(1.48)
15
(.59)
3
(.118)
32
(1.26)
M8 x 1.25
13
(.51)
13
(.51)
48
(1.89)
19
(.75)
4
(.157)
40
(1.57)
M10 x 1.5
16
(.63)
14
(.55)
61
(2.40)
24
(.94)
5
(.197)
50
(1.97)
M12 x 1.75
20
(.79)
21
(.83)
78
(3.07)
31
(1.22)
6
(.236)