Straight Pipe/G Thread Ring Gages
Part NO: RG-303
This Gauges are used for general purpose pipe fittings where pressure tight joints are not required on Threads.Pipe Diameter 1/16 to 6" Above 6" Diameter sizes (PF) are manufactured as per JIS B JIS B 0202-1999
G / R size | Thread pitch | Major diameter | Minor diameter | Gauge length | Tapping drill |
R 95% | G 80% |
(in) | (in−1) | (mm) | (in) | (mm) | (in) | (mm) | (in) | (mm) | (mm) | (mm) |
1⁄16 |
28 |
0.907 |
0.3041 |
7.723 |
0.2583 |
6.561 |
5⁄32 |
4.0 |
6.6 |
6.8 |
1⁄8 |
28 |
0.907 |
0.3830 |
9.728 |
0.3372 |
8.566 |
5⁄32 |
4.0 |
8.6 |
8.8 |
1⁄4 |
19 |
1.337 |
0.5180 |
13.157 |
0.4506 |
11.445 |
.2367 |
6.0 |
11.5 |
11.8 |
3⁄8 |
19 |
1.337 |
0.6560 |
16.662 |
0.5886 |
14.950 |
1⁄4 |
6.4 |
15.0 |
15.3 |
1⁄2 |
14 |
1.814 |
0.8250 |
20.955 |
0.7335 |
18.631 |
.3214 |
8.2 |
18.7 |
19.1 |
5⁄8 |
14 |
1.814 |
0.9020 |
22.911 |
0.8105 |
20.587 |
.3214 |
8.2 |
20.7 |
21.1 |
3⁄4 |
14 |
1.814 |
1.0410 |
26.441 |
0.9495 |
24.117 |
3⁄8 |
9.5 |
24.2 |
24.6 |
7⁄8 |
14 |
1.814 |
1.1890 |
30.201 |
1.0975 |
27.877 |
3⁄8 |
9.5 |
28.0 |
28.3 |
1 |
11 |
2.309 |
1.3090 |
33.249 |
1.1926 |
30.291 |
.4091 |
10.4 |
30.4 |
30.9 |
1 1⁄8 |
11 |
2.309 |
1.4920 |
37.897 |
1.3756 |
34.939 |
.4091 |
10.4 |
35.1 |
35.5 |
1 1⁄4 |
11 |
2.309 |
1.6500 |
41.910 |
1.5335 |
38.952 |
1⁄2 |
12.7 |
39.1 |
39.5 |
1 3⁄8 |
11 |
2.309 |
1.7450 |
44.323 |
1.6285 |
41.365 |
1⁄2 |
12.7 |
41.5 |
42.0 |
1 1⁄2 |
11 |
2.309 |
1.8820 |
47.803 |
1.7656 |
44.845 |
1⁄2 |
12.7 |
45.0 |
45.4 |
1 5⁄8 |
11 |
2.309 |
2.0820 |
52.883 |
1.9656 |
49.926 |
5⁄8 |
15.9 |
50.1 |
50.5 |
1 3⁄4 |
11 |
2.309 |
2.1160 |
53.746 |
1.9995 |
50.788 |
5⁄8 |
15.9 |
50.9 |
51.4 |
1 7⁄8 |
11 |
2.309 |
2.2440 |
56.998 |
2.1276 |
54.041 |
5⁄8 |
15.9 |
54.2 |
54.6 |
2 |
11 |
2.309 |
2.3470 |
59.614 |
2.2306 |
56.656 |
5⁄8 |
15.9 |
56.8 |
57.2 |
2 1⁄4 |
11 |
2.309 |
2.5870 |
65.710 |
2.4706 |
62.752 |
11⁄16 |
17.5 |
62.9 |
63.3 |
2 1⁄2 |
11 |
2.309 |
2.9600 |
75.184 |
2.8435 |
72.226 |
11⁄16 |
17.5 |
72.4 |
72.8 |
2 3⁄4 |
11 |
2.309 |
3.2100 |
81.534 |
3.0935 |
78.576 |
13⁄16 |
20.6 |
78.7 |
79.2 |
3 |
11 |
2.309 |
3.4600 |
87.884 |
3.3435 |
84.926 |
13⁄16 |
20.6 |
85.1 |
85.5 |
3 1⁄4 |
11 |
2.309 |
3.7000 |
93.980 |
3.5835 |
91.022 |
7⁄8 |
22.2 |
91.2 |
91.6 |
3 1⁄2 |
11 |
2.309 |
3.9500 |
100.330 |
3.8335 |
97.372 |
7⁄8 |
22.2 |
97.5 |
98.0 |
3 3⁄4 |
11 |
2.309 |
4.2000 |
106.680 |
4.0835 |
103.722 |
7⁄8 |
22.2 |
103.9 |
104.3 |
4 |
11 |
2.309 |
4.4500 |
113.030 |
4.3335 |
110.072 |
1 |
25.4 |
110.2 |
110.7 |
4 1⁄2 |
11 |
2.309 |
4.9500 |
125.730 |
4.8335 |
122.772 |
1 |
25.4 |
122.9 |
123.4 |
5 |
11 |
2.309 |
5.4500 |
138.430 |
5.3335 |
135.472 |
1 1⁄8 |
28.6 |
135.6 |
136.1 |
5 1⁄2 |
11 |
2.309 |
5.9500 |
151.130 |
5.8335 |
148.172 |
1 1⁄8 |
28.6 |
148.3 |
148.8 |
6 |
11 |
2.309 |
6.4500 |
163.830 |
6.3335 |
160.872 |
1 1⁄8 |
28.6 |
161.0 |
161.5 |
7 |
10 |
2.540 |
7.4500 |
189.230 |
7.3220 |
185.979 |
1 3⁄8 |
34.9 |
186.1 |
186.6 |
8 |
10 |
2.540 |
8.4500 |
214.630 |
8.3220 |
211.379 |
1 1⁄2 |
38.1 |
211.5 |
212.0 |
9 |
10 |
2.540 |
9.4500 |
240.030 |
9.3220 |
236.779 |
1 1⁄2 |
38.1 |
236.9 |
237.4 |
10 |
10 |
2.540 |
10.4500 |
265.430 |
10.3220 |
262.179 |
1 5⁄8 |
41.3 |
262.3 |
262.8 |
11 |
8 |
3.175 |
11.4500 |
290.830 |
11.2900 |
286.766 |
1 5⁄8 |
41.3 |
287.0 |
287.6 |
12 |
8 |
3.175 |
12.4500 |
316.230 |
12.2900 |
312.166 |
1 5⁄8 |
41.3 |
312.4 |
313.0 |
13 |
8 |
3.175 |
13.6800 |
347.472 |
13.5200 |
343.408 |
1 5⁄8 |
41.3 |
343.6 |
344.2 |
14 |
8 |
3.175 |
14.6800 |
372.872 |
14.5200 |
368.808 |
1 3⁄4 |
44.5 |
369.0 |
369.6 |
15 |
8 |
3.175 |
15.6800 |
398.272 |
15.5200 |
394.208 |
1 3⁄4 |
44.5 |
394.4 |
395.0 |
16 |
8 |
3.175 |
16.6800 |
423.672 |
16.5200 |
419.608 |
1 7⁄8 |
47.6 |
419.8 |
420.4 |
17 |
8 |
3.175 |
17.6800 |
449.072 |
17.5200 |
445.008 |
2 |
50.8 |
445.2 |
445.8 |
18 |
8 |
3.175 |
18.6800 |
474.472 |
18.5200 |
470.408 |
2 |
50.8 |
470.6 |
471.2 |