Aluminum
Fill / Drain Plugs
With "DIN" Fill and Drain Symbols, NBR Seal

GN 741

 


 

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Specification
Information

Body: Aluminum, turned, matte shot-blast finish
Symbols laser engraved  
Seal: NBR synthetic rubber

Shipping

The seal is retained in a groove undercut in the mating face, which prevents it from dropping out and from extruding when the plug is tightened. For this reason the seal can be of a softer material which offers better sealing.  
NBR seal: maximum heat resistance: 120°C (250°F).

See our Technical Section for pipe thread size details.
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HERE
Metric Thread Table

Dimensions in:

millimeters
(inches)

Part Number d1 d2
Thread
d3
Vent
Hole
d4
Dipstick
Thread
l1 l2 l3 s e
Plain With
Fill
Symbol
With
Drain
Symbol
741-19-M14X1,5-OS-2
Download the CAD
741-19-M14X1,5-ES-2
Download the CAD
741-19-M14X1,5-AS-2
Download the CAD
19
(.75)
M14 x 1.5 2
(.08)
M5  x .8 15.5
(.61)
8
(.31)
8
(.31)
15
(.59)
17.3
(.68)
741-22-M16X1,5-OS-2
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741-22-M16X1,5-ES-2
Download the CAD
741-22-M16X1,5-AS-2
Download the CAD
22
(.87)
M16 x 1.5  2
(.08)
M5  x .8 15.5
(.61)
8
(.31)
8
(.31)
18
(.71)
20.8
(.82)
741-26-M20X1,5-OS-2
Download the CAD
741-26-M20X1,5-ES-2
Download the CAD
741-26-M20X1,5-AS-2
Download the CAD
26
(1.02)
M20 x 1.5 2
(.08)
M5  x .8 16
(.63)
8.5
(.33)
8
(.31)

21
(.83)

24.3
(.96)
741-32-M26X1,5-OS-2
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741-32-M26X1,5-ES-2
Download the CAD
741-32-M26X1,5-AS-2
Download the CAD
32
(1.26)
M26 x 1.5 2
(.08)
M5  x .8 17
(.67)
9
(.35)
8
(.31)
27
(1.06)
31.3
(1.23)
741-32-M27X1,5-OS-2
Download the CAD
741-32-M27X1,5-ES-2
Download the CAD
741-32-M27X1,5-AS-2
Download the CAD
32
(1.26)
M27 x 1.5 2
(.08)
M5  x .8 17
(.67)
9
(.35)
8
(.31)
27
(1.06)
31.2
(1.23)
741-40-M33X1,5-OS-2
Download the CAD
741-40-M33X1,5-ES-2
Download the CAD
741-40-M33X1,5-AS-2
Download the CAD
40
(1.57)
M33 x 1.5 2
(.08)
M5  x .8 19.5
(.77)
11
(.43)
8
(.31)
32
(1.26)
37
(1.46)
741-50-M40X1,5-OS-2
Download the CAD
741-50-M40X1,5-ES-2
Download the CAD
741-50-M40X1,5-AS-2
Download the CAD
50
(1.97)
M40 x 1.5 2
(.08)
M5  x .8 21
(.83)
12
(.47)
8
(.31)
41
(1.61)
47.3
(1.86)
741-50-M42X1,5-OS-2
Download the CAD
741-50-M42X1,5-ES-2
Download the CAD
741-50-M42X1,5-AS-2
Download the CAD
50
(1.97)
M42 x 1.5 2
(.08)
M5  x .8 21
(.83)
12
(.47)
8
(.31)
41
(1.61)
47.3
(1.86)
741-50-M42X2-OS-2
Download the CAD
741-50-M42X2-ES-2
Download the CAD
741-50-M42X2-AS-2
Download the CAD
50
(1.97)
M42 x 2.0 2
(.08)
M5  x .8 21
(.83)
12
(.47)
8
(.31)
41
(1.61)
47.3
(1.86)
BSPP Parallel Thread Table

Dimensions in:

millimeters
(inches)

Part Number d1 d2
Pipe
Thread
d3
Vent
Hole
d4
Dipstick
Thread
l1 l2 l3 s e
Plain With
Fill
Symbol
With
Drain
Symbol
741-19-G1/4-OS-2
Download the CAD
741-19-G1/4-ES-2
Download the CAD
741-19-G1/4-AS-2
Download the CAD
19
(.75)
G 1/4" 2
(.08)
M5  x .8 15.5
(.61)
8
(.31)
8
(.31)
15
(.59)
17.3
(.68)
741-22-G3/8-OS-2
Download the CAD
741-22-G3/8-ES-2
Download the CAD
741-22-G3/8-AS-2
Download the CAD
22
(.87)
G 3/8"  2
(.08)
M5  x .8 15.5
(.61)
8
(.31)
8
(.31)
18
(.71)
20.8
(.82)
741-26-G1/2-OS-2
Download the CAD
741-26-G1/2-ES-2
Download the CAD
741-26-G1/2-AS-2
Download the CAD
26
(1.02)
G 1/2"  2
(.08)
M5  x .8 16
(.63)
8.5
(.33)
8
(.31)

21
(.83)

24.3
(.96)
741-32-G3/4-OS-2
Download the CAD
741-32-G3/4-ES-2
Download the CAD
741-32-G3/4-AS-2
Download the CAD
32
(1.26)
G 3/4"  2
(.08)
M5  x .8 17
(.67)
9
(.35)

8
(.31)

27
(1.06)
31.2
(1.23)
741-40-G1-OS-2
Download the CAD
741-40-G1-ES-2
Download the CAD
741-40-G1-AS-2
Download the CAD
40
(1.57)
G 1" 2
(.08)
M5  x .8 19.5
(.77)
11
(.43)
8
(.31)
32
(1.26)
37
(1.46)
741-50-G11/4-OS-2
Download the CAD
741-50-G11/4-ES-2
Download the CAD
741-50-G11/4-AS-2
Download the CAD
50
(1.97)
G 1 1/4" 2
(.08)
M5  x .8 21
(.83)
12
(.47)
8
(.31)
41
(1.61)
47.3
(1.86)
741-60-G11/2-OS-2
Download the CAD
741-60-G11/2-ES-2
Download the CAD
741-60-G11/2-AS-2
Download the CAD
60
(2.36)
G 1 1/2" 2
(.08)
M5  x .8 22
(.87)
13
(.51)
8
(.31)
50
(1.97)
57.7
(2.27)