poly caps

The Tapered Series can be used as either a cap or plug* depending on application. Excellent for protecting threads and keeping unwanted contamination out of pipes, valves, tubing and most other cylindrical openings. The most economical solution for protecting standard size threads, unified threads, N.P.T. and metric size fittings or ports.
*Refer to plug sizes HERE.

  • Typical wall thickness .032
  • Color: Red
  • Material: Low Density Polyethylene
  • LDPE service temperature: 150° F (66° C)
  • Applicable specs: MIL-C-5501/7 (MIL-C-52078), NAS-834
  • Most sizes available in thermoplastic rubber for higher heat applications
  • Thermoplastic rubber service temperature: 275° F (135° C)
  • RoHS Compliant
tapered caps
PART NO. COMMON APPLICATION A B E F BOX
QTY.
SELECT PACK
QTY.
KIT PACK
QTY.
PART NO.
in. mm. in. mm in. mm. in. mm.
1 0.057 1.45 0.122 3.10 0.403 10.24 0.311 7.90 25,000 1,000 100 1
2 0.085 2.16 0.145 3.68 0.375 9.53 0.377 9.58 25,000 1,000 100 2
3 0.113 2.87 0.183 4.65 0.379 9.63 0.375 9.53 25,000 1,000 100 3
4 0.124 3.15 0.196 4.98 0.377 9.58 0.372 9.45 25,000 1,000 100 4
5 0.148 3.76 0.212 5.38 0.379 9.63 0.435 11.05 20,000 1,000 100 5
6 0.177 4.50 0.240 6.10 0.381 9.68 0.473 12.01 15,000 1,000 100 6
7 0.210 5.33 0.275 6.99 0.375 9.53 0.470 11.94 15,000 1,000 100 7
8 15/64 std. thrd. 0.240 6.10 0.301 7.65 0.385 9.78 0.533 13.54 25,000 1,000 100 8
9 0.270 6.86 0.331 8.41 0.377 9.58 0.559 14.20 22,500 1,000 100 9
10 0.303 7.70 0.362 9.19 0.380 9.65 0.579 14.71 20,000 1,000 100 10
11 3/8 std. thrd. 0.327 8.31 0.393 9.98 0.377 9.58 0.620 15.75 17,000 1,000 100 11
12 1/8 N.P.T. 0.362 9.19 0.425 10.80 0.380 9.65 0.596 15.14 17,000 1,000 100 12
13 7/16 std. thrd. 0.386 9.80 0.448 11.38 0.374 9.50 0.625 15.88 15,000 1,000 100 13
14 1/2 std. thrd. 0.410 10.41 0.483 12.27 0.498 12.65 0.719 18.26 9,000 1,000 100 14
15 0.438 11.13 0.505 12.83 0.438 11.13 0.750 19.05 9,000 1,000 100 15
16 1/4 N.P.T. 0.476 12.09 0.552 14.02 0.501 12.73 0.752 19.10 7,500 1,000 100 16
17 9/16 std. thrd. 0.477 12.12 0.569 14.45 0.500 13.00 0.784 19.91 7,500 1,000 100 17
18 5/8 std. thrd. 0.525 13.34 0.606 15.39 0.529 13.44 0.877 22.28 5,000 1,000 100 18
19 0.549 13.94 0.634 16.10 0.495 12.57 0.839 21.31 6,000 1,000 100 19
20 0.574 14.58 0.658 16.71 0.492 12.50 0.872 22.15 6,000 1,000 100 20
21 3/8 N.P.T. 0.616 15.65 0.695 17.65 0.500 12.70 0.875 22.23 5,000 1,000 100 21
22 0.634 16.10 0.722 18.34 0.620 15.75 0.938 23.83 4,000 1,000 100 22
23 3/4 std. thrd. 0.659 16.74 0.758 19.25 0.502 12.75 1.004 25.50 4,500 1,000 100 23
24 0.687 17.45 0.783 19.89 0.621 15.77 1.032 26.21 6,000 1,000 100 24
25 1/2 N.P.T. 0.736 18.69 0.838 21.29 0.747 18.97 1.024 26.01 5,000 1,000 100 25
26 7/8 std. thrd. 0.750 19.05 0.871 22.12 0.620 15.75 1.123 28.52 5,000 1,000 100 26
27 0.807 20.50 0.910 23.11 0.747 18.97 1.130 28.70 4,500 1,000 100 27
27x 0.809 20.55 0.907 23.04 0.629 15.98 1.127 28.63 5,000 1,000 100 27x
28 0.829 21.06 0.967 24.56 0.620 15.75 1.153 29.29 5,000 1,000 100 28
29 0.913 23.19 0.988 25.10 0.500 12.70 1.253 31.83 2,500 500 50 29
30 3/4 N.P.T. 0.904 21.29 1.021 25.93 0.747 18.97 1.243 31.57 3,500 500 50 30
31 1-1/16 std. thrd. 0.930 22.15 1.080 27.43 0.749 19.02 1.306 33.17 3,500 500 50 31
32 1.036 26.31 1.151 29.24 0.740 18.80 1.497 38.02 2,500 500 50 32
33 1.103 27.00 1.217 30.91 0.743 18.87 1.431 36.35 2,500 500 50 33
34 1.160 29.46 1.290 32.77 0.746 18.95 1.497 38.02 2,500 500 50 34
35 1 N.P.T., 1-5/16 std. thrd. 1.176 29.87 1.298 32.97 0.749 19.02 1.497 38.02 2,500 500 50 35
36 1.227 31.17 1.292 32.82 0.377 9.58 1.504 38.20 2,000 500 50 36
37 1.250 31.75 1.402 35.61 0.750 19.05 1.625 41.28 2,000 500 50 37
37x 1.140 28.96 1.420 36.07 0.835 20.57 1.560 39.62 2,000 500 50 37x
38 1.277 32.44 1.451 36.86 0.995 25.27 1.751 44.48 1,300 200 20 38
39 1.386 35.20 1.531 38.89 0.741 18.82 1.748 44.40 1,800 200 20 39
40 1.451 36.86 1.538 39.07 0.496 12.60 1.749 44.42 2,500 200 20 40
40x 1.456 36.98 1.541 39.14 0.748 19.00 1.753 44.53 1,700 200 20 40x
41 1-1/4 N.P.T., 1-5/8 std. thrd. 1.491 37.87 1.616 41.05 0.739 18.77 1.874 47.60 1,500 200 20 41
42 1.559 39.60 1.694 43.03 0.743 18.87 2.004 50.90 1,200 200 20 42
42x 1.725 43.82 1.760 44.70 0.405 10.29 1.995 50.67 2,000 200 20 42x
43 1.672 42.47 1.803 45.80 0.739 18.77 2.050 52.07 1,200 200 20 43
44 1-1/2 N.P.T., 1-7/8 std. thrd. 1.726 43.84 1.871 47.52 0.995 25.27 2.109 53.57 900 200 20 44
45 1.745 44.32 1.934 49.12 0.995 24.99 2.185 55.50 900 200 20 45
46 1.831 46.51 2.011 51.08 0.995 25.27 2.244 57.00 850 200 20 46
47 1.925 48.23 2.050 51.41 0.995 25.27 2.255 56.13 800 200 20 47
48 1.924 48.87 2.067 52.50 0.742 18.85 2.320 58.93 1,000 200 20 48
49 2.001 50.83 2.175 53.26 0.994 25.25 2.500 63.50 700 100 10 49
50 2.145 54.48 2.174 55.22 0.491 12.47 2.473 62.81 1,200 200 20 50
51 2-1/4 std. thrd. 2.086 52.98 2.275 57.79 1.000 25.40 2.640 67.06 600 100 10 51
52 2.054 52.17 2.300 58.42 0.994 25.25 2.481 63.02 700 200 20 52
53 2 N.P.T. 2.220 56.39 2.376 60.35 0.995 25.27 2.621 66.57 600 100 10 53
54 2-1/2 std. thrd. 2.300 56.77 2.540 64.52 1.000 25.40 2.812 71.42 500 100 10 54
55 2.412 61.26 2.569 65.25 0.745 18.92 2.738 69.55 700 100 10 55
56 2.239 56.87 2.587 65.71 0.997 25.32 2.747 69.77 750 100 10 56
57 2.395 60.83 2.690 68.33 1.000 25.40 2.875 73.03 600 100 10 57
58 2.499 63.47 2.630 66.80 0.997 25.32 2.874 73.00 450 100 10 58
59 2.550 64.77 2.750 69.85 0.746 18.95 3.008 76.40 500 100 10 59
60 2.802 71.17 2.930 74.42 0.749 19.02 3.265 82.93 500 100 10 60
61 2-1/2 N.P.T. 2.690 68.33 2.931 74.45 1.000 25.40 3.115 79.12 500 100 10 61
61x 2.912 73.96 3.041 77.24 0.783 19.89 3.344 84.94 500 100 10 61x
62 2.885 73.28 3.130 79.50 0.743 18.87 3.363 85.42 500 100 10 62
63 2.929 74.40 3.171 80.54 0.999 25.37 3.394 86.21 400 100 10 63
64 3.023 76.78 3.302 83.87 0.993 25.22 3.496 88.80 400 100 10 64
65 3.256 82.70 3.383 85.93 0.752 19.10 3.633 92.28 400 50 5 65
66 3 N.P.T. 3.214 81.64 3.490 88.65 0.999 25.37 4.009 101.83 300 50 5 66
67 3.403 86.44 3.548 90.12 0.746 18.95 3.991 101.37 350 50 5 67
68 3.608 91.64 3.730 94.74 0.750 19.05 4.000 101.60 300 50 5 68
69 3-1/2 N.P.T. 3.717 94.41 3.855 97.92 0.745 18.92 4.150 105.41 300 50 5 69
70 3.852 97.84 3.997 101.52 0.737 18.72 4.368 110.95 300 50 5 70
70x 3.941 98.35 4.020 102.11 0.790 20.07 4.400 111.76 250 50 5 70x
71 3.967 100.76 4.080 103.63 0.750 19.05 4.499 114.27 250 50 5 71
72 4.132 104.95 4.382 111.30 1.002 25.45 5.020 127.51 300 50 5 72
73 4 N.P.T. 4.283 108.79 4.496 114.20 0.997 25.32 4.985 126.62 250 50 5 73
80 4.559 115.80 4.774 121.26 0.935 23.75 5.220 132.59 150 50 5 80
83 4.865 123.57 5.042 128.07 1.050 26.67 5.540 140.72 100 25 5 83
90 8.050 204.47 8.250 209.55 1.420 36.07 8.750 222.25 30 10 5 90

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