North American Clutch & Driveline
Rockford, Illinois
Phone: (800) 383-9204
(815) 282-7960
Fax (815) 282-9160
www.naclutch.com
Table 3. Tapered Pipe Plugs (with thread lubricant)
Table 4. Straight Threaded Tube Fittings, Hose Fittings, and O-Ring Plugs
NPTF Size (in)
Nm ( + or -5%)
Nm ( + or -5%)
lb-ft (+ or -5%)
lb-ft (+ or -5%)
5.5
6.5
16
17
30
34
50
55
55
7.5
9
21.5
23
40.5
46
68
75
75
8.5
10.5
25
27
50
54
80
85
85
11.5
14
34
36.5
68
73
108
115
115
1/16-27
1/8-27
1/4-18
3/8-18
1/2-14
3/4-14
1-11 1/2
1 1/4-11 1/2
1 1/2-11 1/2
Nominal
Thread
Diameter
Nm
( + or -5%)
lb-ft
(+ or -5%)
5/16
3/8
7/16
1/2
9/16
5/8
11/16
3/4
7/8
1 1/16
1 3/16
1 1/4
1 5/16
1 3/8
1 5/8
1 7/8
2 1/2
Nominal
Thread
Diameter
M10x1.0
M12x1.5
M14x1.5
M16x1.5
M18x1.5
M22x1.5
M27x2.0 (IRON)
M27x2.0 (ALUM)
M33x2.0
M42x2.0
M48x2.0
5
11.5
16
20
24.5
24.5
34
40.5
54
75
88
88
108
108
135
162
312
3.5
8.5
12
15
18
18
25
30
40
55
65
65
80
80
100
120
230
Nm
( + or -5%)
lb-ft
(+ or -5%)
26
37
47
58
74
105
179
85
326
347
441
19
27
35
43
55
77
132
63
240
256
325
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