GN 741Threaded plugs

Threaded plugs

Aluminium, resistant up to 100 °C

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Threaded plugs
Threaded plugs

GN 741

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Catalogue
d1
d2
d3
d4
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l2
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t min.
GN 741-19-M14x1,5-ASS-1
19
M 14 x 1.5
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-M14x1,5-OSS-1
19
M 14 x 1.5
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-M14x1,5-AS-1
19
M 14 x 1.5
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-M14x1,5-OS-1
19
M 14 x 1.5
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-M14x1,5-ES-1
19
M 14 x 1.5
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-M14x1,5-ESS-1
19
M 14 x 1.5
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-M14x1,5-OS-2
19
M 14 x 1.5
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-M14x1,5-AS-2
19
M 14 x 1.5
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-M14x1,5-ESS-2
19
M 14 x 1.5
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-M14x1,5-ES-2
19
M 14 x 1.5
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-M14x1,5-ASS-2
19
M 14 x 1.5
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-M14x1,5-OSS-2
19
M 14 x 1.5
2
M 5
15.5
8
15
17.3
8
7
GN 741-22-M16x1,5-OS-1
22
M 16 x 1.5
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-M16x1,5-ESS-1
22
M 16 x 1.5
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-M16x1,5-AS-1
22
M 16 x 1.5
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-M16x1,5-ES-1
22
M 16 x 1.5
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-M16x1,5-OSS-1
22
M 16 x 1.5
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-M16x1,5-ASS-1
22
M 16 x 1.5
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-M16x1,5-ASS-2
22
M 16 x 1.5
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-M16x1,5-ESS-2
22
M 16 x 1.5
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-M16x1,5-ES-2
22
M 16 x 1.5
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-M16x1,5-OS-2
22
M 16 x 1.5
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-M16x1,5-AS-2
22
M 16 x 1.5
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-M16x1,5-OSS-2
22
M 16 x 1.5
2
M 5
15.5
8
18
20.8
8
10
GN 741-26-M20x1,5-ESS-1
26
M 20 x 1.5
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-M20x1,5-OSS-1
26
M 20 x 1.5
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-M20x1,5-ASS-1
26
M 20 x 1.5
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-M20x1,5-AS-1
26
M 20 x 1.5
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-M20x1,5-OS-1
26
M 20 x 1.5
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-M20x1,5-ES-1
26
M 20 x 1.5
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-M20x1,5-ASS-2
26
M 20 x 1.5
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-M20x1,5-AS-2
26
M 20 x 1.5
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-M20x1,5-ESS-2
26
M 20 x 1.5
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-M20x1,5-ES-2
26
M 20 x 1.5
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-M20x1,5-OS-2
26
M 20 x 1.5
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-M20x1,5-OSS-2
26
M 20 x 1.5
2
M 5
16
8.5
21
24.3
8
16
GN 741-32-M26x1,5-ESS-1
32
M 26 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M26x1,5-ES-1
32
M 26 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M26x1,5-OS-1
32
M 26 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M26x1,5-AS-1
32
M 26 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M26x1,5-ASS-1
32
M 26 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M26x1,5-OSS-1
32
M 26 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M26x1,5-AS-2
32
M 26 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M26x1,5-OS-2
32
M 26 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M26x1,5-ASS-2
32
M 26 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M26x1,5-ESS-2
32
M 26 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M26x1,5-OSS-2
32
M 26 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M26x1,5-ES-2
32
M 26 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M27x1,5-ES-1
32
M 27 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M27x1,5-ESS-1
32
M 27 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M27x1,5-OS-1
32
M 27 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M27x1,5-AS-1
32
M 27 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M27x1,5-OSS-1
32
M 27 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M27x1,5-ASS-1
32
M 27 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M27x1,5-ASS-2
32
M 27 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M27x1,5-OS-2
32
M 27 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M27x1,5-OSS-2
32
M 27 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M27x1,5-AS-2
32
M 27 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M27x1,5-ES-2
32
M 27 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-32-M27x1,5-ESS-2
32
M 27 x 1.5
2
M 5
17
9
27
31.2
8
30
GN 741-40-M33x1,5-ES-1
40
M 33 x 1.5
2
M 5
19.5
11
32
37
8
47
GN 741-40-M33x1,5-OSS-1
40
M 33 x 1.5
2
M 5
19.5
11
32
37
8
47
GN 741-40-M33x1,5-AS-1
40
M 33 x 1.5
2
M 5
19.5
11
32
37
8
47
GN 741-40-M33x1,5-OS-1
40
M 33 x 1.5
2
M 5
19.5
11
32
37
8
47
GN 741-40-M33x1,5-ESS-1
40
M 33 x 1.5
2
M 5
19.5
11
32
37
8
47
GN 741-40-M33x1,5-ASS-1
40
M 33 x 1.5
2
M 5
19.5
11
32
37
8
47
GN 741-40-M33x1,5-OSS-2
40
M 33 x 1.5
2
M 5
19.5
11
32
37
8
47
GN 741-40-M33x1,5-ESS-2
40
M 33 x 1.5
2
M 5
19.5
11
32
37
8
47
GN 741-40-M33x1,5-ASS-2
40
M 33 x 1.5
2
M 5
19.5
11
32
37
8
47
GN 741-40-M33x1,5-ES-2
40
M 33 x 1.5
2
M 5
19.5
11
32
37
8
47
GN 741-40-M33x1,5-OS-2
40
M 33 x 1.5
2
M 5
19.5
11
32
37
8
47
GN 741-40-M33x1,5-AS-2
40
M 33 x 1.5
2
M 5
19.5
11
32
37
8
47
GN 741-50-M40x1,5-ASS-1
50
M 40 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M40x1,5-OS-1
50
M 40 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M40x1,5-ESS-1
50
M 40 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M40x1,5-OSS-1
50
M 40 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M40x1,5-ES-1
50
M 40 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M40x1,5-AS-1
50
M 40 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M40x1,5-ESS-2
50
M 40 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M40x1,5-OS-2
50
M 40 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M40x1,5-OSS-2
50
M 40 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M40x1,5-ASS-2
50
M 40 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M40x1,5-AS-2
50
M 40 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M40x1,5-ES-2
50
M 40 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x1,5-ES-1
50
M 42 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x1,5-OS-1
50
M 42 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x1,5-ASS-1
50
M 42 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x1,5-OSS-1
50
M 42 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x1,5-AS-1
50
M 42 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x1,5-ESS-1
50
M 42 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x1,5-ASS-2
50
M 42 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x1,5-OSS-2
50
M 42 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x1,5-ES-2
50
M 42 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x1,5-ESS-2
50
M 42 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x1,5-OS-2
50
M 42 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x1,5-AS-2
50
M 42 x 1.5
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x2-OS-1
50
M 42 x 2
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x2-AS-1
50
M 42 x 2
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x2-ESS-1
50
M 42 x 2
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x2-ASS-1
50
M 42 x 2
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x2-ES-1
50
M 42 x 2
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x2-OSS-1
50
M 42 x 2
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x2-OS-2
50
M 42 x 2
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x2-ES-2
50
M 42 x 2
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x2-ASS-2
50
M 42 x 2
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x2-ESS-2
50
M 42 x 2
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x2-AS-2
50
M 42 x 2
2
M 5
21
12
41
47.3
8
82
GN 741-50-M42x2-OSS-2
50
M 42 x 2
2
M 5
21
12
41
47.3
8
82
GN 741-19-G1/4-OS-1
19
G 1/4
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-G1/4-ASS-1
19
G 1/4
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-G1/4-ES-1
19
G 1/4
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-G1/4-OSS-1
19
G 1/4
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-G1/4-AS-1
19
G 1/4
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-G1/4-ESS-1
19
G 1/4
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-G1/4-ES-2
19
G 1/4
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-G1/4-ESS-2
19
G 1/4
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-G1/4-ASS-2
19
G 1/4
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-G1/4-OS-2
19
G 1/4
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-G1/4-AS-2
19
G 1/4
2
M 5
15.5
8
15
17.3
8
7
GN 741-19-G1/4-OSS-2
19
G 1/4
2
M 5
15.5
8
15
17.3
8
7
GN 741-22-G3/8-ES-1
22
G 3/8
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-G3/8-ESS-1
22
G 3/8
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-G3/8-AS-1
22
G 3/8
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-G3/8-OSS-1
22
G 3/8
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-G3/8-OS-1
22
G 3/8
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-G3/8-ASS-1
22
G 3/8
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-G3/8-ASS-2
22
G 3/8
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-G3/8-ESS-2
22
G 3/8
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-G3/8-ES-2
22
G 3/8
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-G3/8-AS-2
22
G 3/8
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-G3/8-OS-2
22
G 3/8
2
M 5
15.5
8
18
20.8
8
10
GN 741-22-G3/8-OSS-2
22
G 3/8
2
M 5
15.5
8
18
20.8
8
10
GN 741-26-G1/2-AS-1
26
G 1/2
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-G1/2-ESS-1
26
G 1/2
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-G1/2-ES-1
26
G 1/2
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-G1/2-OSS-1
26
G 1/2
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-G1/2-ASS-1
26
G 1/2
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-G1/2-OS-1
26
G 1/2
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-G1/2-ESS-2
26
G 1/2
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-G1/2-OS-2
26
G 1/2
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-G1/2-OSS-2
26
G 1/2
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-G1/2-AS-2
26
G 1/2
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-G1/2-ES-2
26
G 1/2
2
M 5
16
8.5
21
24.3
8
16
GN 741-26-G1/2-ASS-2
26
G 1/2
2
M 5
16
8.5
21
24.3
8
16
GN 741-32-G3/4-ESS-1
32
G 3/4
2
M 5
17
9
27
31.2
8
30
GN 741-32-G3/4-AS-1
32
G 3/4
2
M 5
17
9
27
31.2
8
30
GN 741-32-G3/4-OSS-1
32
G 3/4
2
M 5
17
9
27
31.2
8
30
GN 741-32-G3/4-ES-1
32
G 3/4
2
M 5
17
9
27
31.2
8
30
GN 741-32-G3/4-OS-1
32
G 3/4
2
M 5
17
9
27
31.2
8
30
GN 741-32-G3/4-ASS-1
32
G 3/4
2
M 5
17
9
27
31.2
8
30

Types

  • Type OS: neutral, blank
  • Type OSS: neutral, black anodized
  • Type ES: with DIN re-fill symbol, blank
  • Type ESS: with DIN re-fill symbol, black anodized
  • Type AS: with DIN drain symbol, blank
  • Type ASS: with DIN drain symbol, black anodized

Identification no.

  • No. 1: without vent drilling
  • No. 2: with vent drilling

Aluminium

  • Type OS, ES and AS: fine turned, blank
  • Type OSS, ESS and ASS: fine turned, black anodized
  • Symbol laser engraved

Temperature resistant up to 100 °C

Sealing ring rubbers NBR (Perbunan)

Threaded plugs GN 741 are fitted with outside diameter d1 to suit screw holes with BSP threads to DIN 3852.

The sealing ring is bedded into a undercut groove which prevents it from dropping out and at the same time stops it from being extruded when tightening the cap.

  • with dipstick
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