Steel, Zinc Plated
Threaded Pipe Plugs
With NBR Synthetic Rubber Seal

GN 749


RoHS Compliant
 
Specification
Information

Body: Steel, European material property class 5.8 grade, zinc-plated, blue passivated finish, ultrasonically checked  
Seal: NBR synthetic rubber

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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BSPP Parallel Thread Table

Dimensions in:

millimeters
(inches)

Part Number
d1
Pipe Thread
d2
(h14)
d3
l1
l2
s
Seal
Type
Max. Allowable
Operating Pressure (PB)
Recommended
Torque (Nm)
G 1/8" 
14
(.55)
11.9
(.47)
8
(.31)
4
(.16)
5
(.20)
NBR 
400 Bar 
10 
G 1/4" 
19
(.75)
16.5
(.65)
12
(.47)
5
(.20)

6
(.24)

NBR 
400 Bar 
26 
G 3/8" 
22
(.87)
18.9
(.74)
12
(.47)
5
(.20)
8
(.31)
NBR 
400 Bar 
34 
G 1/2" 
27
(1.06)
23.9
(.94)
14
(.55)
5
(.20)
10
(.39)
NBR 
400 Bar 
60 
G 3/4" 
32
(1.26)
29.2
(1.15)
16
(.63)
5
(.20)
12
(.47)
NBR 
400 Bar 
85 
G 1" 
40
(1.57)
35.7
(1.40)
16
(.63)
6.5
(.26)
17
(.67)
NBR 
400 Bar 
130 
G 1 1/4" 
50
(1.97)
45.8
(1.80)
16
(.63)
6.5
(.26)
22
(.87)
NBR 
250 Bar 
240 
G 1 1/2" 
55
(2.17)
50.7
(2.00)
16
(.63)
6.5
(.26)
24
(.94)
Viton 
250 Bar 
280 
Metric Thread Table

Dimensions in:

millimeters
(inches)

Part Number
d1 Thread
d2
(h14)
d3
l1
l2
s
Seal
Type
Max. Allowable
Operating Pressure (PB)
Recommended
Torque (Nm)
M10 x 1.0 
14
(.55)
11.9
(.47)
8
(.31)
4
(.16)
5
(.20)
NBR 
400 Bar 
10 
M12 x 1.5 
17
(.67)
14.4
(.57)
12
(.47)
5
(.20)
6
(.24)
NBR 
400 Bar 
20 
M14 x 1.5 
19
(.75)
16.5
(.65)
12
(.47)
5
(.20)
6
(.24)
NBR 
400 Bar 
30 
M16 x 1.5 
22
(.87)
18.9
(.74)
12
(.47)
5
(.20)
8
(.31)
NBR 
400 Bar 
34 
M18 x 1.5 
24
(.94)
20.9
(.96)
12
(.47)
5
(.20)
8
(.31)
NBR 
400 Bar 
42 
M22 x 1.5 
27
(1.06)
24.3
(.96)
14
(.55)
5
(.20)
10
(.39)
NBR 
400 Bar 
60 
M26 x 1.5 
32
(1.26)
29.2
(1.15)
16
(.63)
5
(.20)
12
(.47)
NBR 
400 Bar 
70 
M27 x 2.0 
32
(1.26)
29.2
(1.15)
16
(.63)
5
(.20)
12
(.47)
NBR 
400 Bar 
85 
M33 x 2.0 
40
(1.57)
35.7
(1.40)
16
(.63)
6.5
(.26)
17
(.67)
NBR 
400 Bar 
130 
M42 x 2.0 
50
(1.97)
45.8
(1.80)
16
(.63)
6.5
(.26)
22
(.87)
Viton 
250 Bar 
240 
M48 x 2.0 
55
(2.17)
50.7
(2.00)
16
(.63)
6.5
(.26)
24
(.94)
Viton 
250 Bar 
280