BS Aflas O-Rings | OneMonroe

British Standard O-Rings are very similar to Standard O-Rings in the fact that they are both standardized imperically. The British Standard however, incorporates some extended sizes in the 1/4" nominal cross section group for an even broader application range. British Standard O-Rings serve a variety of industries including aerospace, paint, food, and chemical transport.

This elastomer is a copolymer of Tetrafluoroethylene (TFE) and propylene. Its chemical resistance is excellent across a wide range of aggressive media.For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.

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Inside Diameter (mm)

Item #	IntegrationID	Type	Material	Cross Section Width	Durometer	Inside Diameter	CSW Tolerance	BS Number	Call for a Quote	O-Ring Industries

BS381 AFLAS-75	N/A 186683	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 11.98 in304.17 mm	N/A 0.005 in0.13 mm	N/A -381	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS380 AFLAS-75	N/A 186684	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 11.48 in291.47 mm	N/A 0.005 in0.13 mm	N/A -380	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS379 AFLAS-75	N/A 186685	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 10.98 in278.77 mm	N/A 0.005 in0.13 mm	N/A -379	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS378 AFLAS-75	N/A 186686	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 10.48 in266.07 mm	N/A 0.005 in0.13 mm	N/A -378	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS377 AFLAS-75	N/A 186687	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 9.98 in253.37 mm	N/A 0.005 in0.13 mm	N/A -377	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS376 AFLAS-75	N/A 186688	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 9.73 in247.02 mm	N/A 0.005 in0.13 mm	N/A -376	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS375 AFLAS-75	N/A 186689	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 9.48 in240.67 mm	N/A 0.005 in0.13 mm	N/A -375	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS374 AFLAS-75	N/A 186690	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 9.23 in234.32 mm	N/A 0.005 in0.13 mm	N/A -374	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS373 AFLAS-75	N/A 186691	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 8.98 in227.97 mm	N/A 0.005 in0.13 mm	N/A -373	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS372 AFLAS-75	N/A 186692	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 8.73 in221.62 mm	N/A 0.005 in0.13 mm	N/A -372	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS371 AFLAS-75	N/A 186693	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 8.48 in215.27 mm	N/A 0.005 in0.13 mm	N/A -371	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS370 AFLAS-75	N/A 186694	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 8.23 in208.92 mm	N/A 0.005 in0.13 mm	N/A -370	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS369 AFLAS-75	N/A 186695	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 7.98 in202.57 mm	N/A 0.005 in0.13 mm	N/A -369	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS368 AFLAS-75	N/A 186696	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 7.73 in196.22 mm	N/A 0.005 in0.13 mm	N/A -368	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS367 AFLAS-75	N/A 186697	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 7.48 in189.87 mm	N/A 0.005 in0.13 mm	N/A -367	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS366 AFLAS-75	N/A 186698	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 7.23 in183.52 mm	N/A 0.005 in0.13 mm	N/A -366	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS365 AFLAS-75	N/A 186699	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 6.98 in177.17 mm	N/A 0.005 in0.13 mm	N/A -365	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS364 AFLAS-75	N/A 186700	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 6.73 in170.82 mm	N/A 0.005 in0.13 mm	N/A -364	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS363 AFLAS-75	N/A 186701	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 6.48 in164.47 mm	N/A 0.005 in0.13 mm	N/A -363	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS362 AFLAS-75	N/A 186702	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 6.23 in158.12 mm	N/A 0.005 in0.13 mm	N/A -362	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS361 AFLAS-75	N/A 186703	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 5.98 in151.77 mm	N/A 0.005 in0.13 mm	N/A -361	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS375 AFLAS-75	N/A 186704	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 5.85 in148.59 mm	N/A 0.005 in0.13 mm	N/A -375	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS359 AFLAS-75	N/A 186705	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 5.73 in145.42 mm	N/A 0.005 in0.13 mm	N/A -359	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS358 AFLAS-75	N/A 186706	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 5.60 in142.24 mm	N/A 0.005 in0.13 mm	N/A -358	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
BS357 AFLAS-75	N/A 186707	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 75	N/A 5.48 in139.07 mm	N/A 0.005 in0.13 mm	N/A -357	N/A	N/A O-rings are used in the military, automotive, aerospace and agriculture industries.

176 - 200 of 926 | Results Per Page | View | Unit of Measure

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No Preference
0.04
0.05
0.06
0.07
0.08
0.10
0.11
0.13
0.14
0.17
0.18
0.19
0.21
0.23
0.24
0.25
0.27
0.30
0.31
0.34
0.36
0.39
0.41
0.42
0.43
0.44
0.47
0.48
0.49
0.50
0.52
0.54
0.55
0.59
0.60
0.61
0.63
0.66
0.67
0.68
0.69
0.70
0.73
0.74
0.79
0.80
0.81
0.85
0.86
0.88
0.91
0.92
0.93
0.94
0.98
0.99
1.02
1.04
1.05
1.10
1.11
1.16
1.17
1.18
1.23
1.24
1.29
1.30
1.35
1.36
1.42
1.43
1.48
1.49
1.55
1.56
1.60
1.61
1.63
1.67
1.69
1.73
1.74
1.75
1.80
1.81
1.85
1.86
1.88
1.93
1.94
1.98
1.99
10.23
10.48
10.73
10.98
11.23
11.48
11.73
11.98
12.23
12.48
12.73
12.98
13.23
13.48
13.98
14.48
14.98
15.48
15.96
16.46
16.96
17.46
17.96
18.46
18.96
19.46
19.96
2.00
2.05
2.06
2.10
2.11
2.13
2.18
2.19
2.23
2.24
2.25
2.30
2.31
2.35
2.36
2.43
2.44
2.48
2.49
2.50
2.55
2.56
2.60
2.61
2.63
2.68
2.69
2.73
2.74
2.75
2.80
2.81
2.85
2.86
2.88
2.92
2.94
2.95
2.97
2.98
2.99
20.96
21.96
22.94
24.94
25.94
29.85
3.05
3.10
3.11
3.14
3.17
3.23
3.24
3.30
3.35
3.36
3.48
3.49
3.53
3.60
3.61
3.73
3.74
3.85
3.86
3.94
3.98
3.99
4.10
4.11
4.23
4.24
4.31
4.35
4.36
4.48
4.49
4.52
4.60
4.61
4.63
4.73
4.74
4.75
4.85
4.86
4.88
4.91
4.98
4.99
5.00
5.09
5.10
5.11
5.13
5.23
5.24
5.25
5.30
5.34
5.35
5.36
5.38
5.47
5.48
5.49
5.50
5.59
5.60
5.61
5.63
5.72
5.73
5.74
5.75
5.84
5.85
5.86
5.88
5.97
5.98
5.99
6.09
6.10
6.13
6.22
6.23
6.24
6.28
6.34
6.35
6.38
6.47
6.48
6.49
6.56
6.60
6.63
6.69
6.72
6.73
6.74
6.84
6.85
6.88
6.98
6.99
7.13
7.23
7.24
7.38
7.48
7.49
7.63
7.73
7.74
7.88
7.98
7.99
8.23
8.24
8.48
8.49
8.73
8.74
8.98
8.99
9.23
9.24
9.48
9.49
9.73
9.74
9.98

No Preference
1.07
1.24
1.42
1.78
10.46
10.69
10.77
10.82
100.00
100.97
101.19
101.27
101.32
104.14
104.37
104.39
107.32
107.54
107.62
107.67
109.54
11.10
11.91
110.49
110.72
110.74
113.67
113.89
113.97
114.02
114.71
116.84
117.07
117.09
117.48
12.07
12.29
12.37
12.42
12.70
120.02
120.24
120.32
120.37
120.65
123.19
123.42
123.44
123.83
124.61
126.37
126.59
126.67
126.72
127.00
129.41
129.54
129.77
13.11
13.64
13.94
130.18
132.72
132.94
133.02
133.07
133.35
134.54
135.76
135.89
136.12
136.53
138.94
139.07
139.29
139.37
139.70
14.00
142.11
142.24
142.47
142.88
145.29
145.42
145.64
145.72
146.05
148.46
148.59
148.82
149.23
15.09
15.24
15.47
15.54
15.6
15.88
151.64
151.77
151.99
152.07
154.81
154.94
155.58
157.99
158.12
158.34
158.42
159.54
16.81
161.16
161.29
161.93
164.34
164.47
164.69
164.77
166.70
167.64
168.28
17.07
17.12
17.17
17.45
17.86
170.05
170.69
170.82
171.04
171.12
173.86
173.99
174.63
177.17
177.39
177.47
18.42
18.64
18.72
18.77
180.98
183.52
183.74
183.82
187.33
189.87
19.99
190.09
190.17
193.68
196.22
196.44
196.52
2.06
2.54
2.57
2.84
2.90
20.22
20.29
20.35
20.62
200.03
202.57
202.79
202.87
208.92
209.14
209.22
21.59
21.82
21.89
21.95
215.27
215.49
215.57
22.23
221.62
221.84
221.92
227.97
228.19
228.27
23.16
23.39
23.47
23.52
23.80
234.32
234.54
234.62
24.77
24.99
240.67
240.89
240.97
247.02
247.24
247.32
25.07
25.12
25.81
253.37
253.59
259.72
26.34
26.57
26.64
26.70
266.07
266.29
27.94
272.42
278.77
278.99
28.17
28.24
28.30
285.12
29.51
29.74
29.82
29.87
291.47
291.69
297.82
3.18
3.63
3.68
304.17
304.39
31.12
31.34
31.42
31.47
310.52
316.87
32.69
32.92
32.99
323.22
329.57
329.79
33.05
335.92
34.29
34.52
34.59
34.65
342.27
354.97
355.19
36.09
36.17
36.27
367.67
37.47
37.69
37.77
37.82
380.37
380.59
39.34
39.45
39.70
393.07
4.34
4.45
4.47
4.75
40.64
40.87
40.94
405.26
41.00
41.28
417.96
42.52
42.85
43.82
430.66
44.04
44.12
44.17
44.45
443.36
45.69
456.06
46.04
46.99
468.76
47.22
47.29
47.35
47.63
48.90
481.46
49.20
494.16
5.23
5.28
5.94
50.17
50.39
50.47
50.52
50.80
506.86
52.07
52.39
53.34
53.57
53.64
53.70
53.98
532.26
55.25
55.55
557.66
56.52
56.74
56.82
56.87
57.15
58.42
58.74
582.68
59.69
59.92
59.99
6.02
6.07
6.35
6.76
61.60
61.90
62.87
63.09
63.17
63.22
63.50
633.48
64.77
65.1
658.88
66.04
66.27
66.34
66.40
66.68
67.95
68.25
69.22
69.44
69.52
69.57
69.85
7.52
7.59
7.65
7.94
71.12
71.44
72.39
72.62
72.69
72.75
73.03
74.27
74.60
74.61
75.05
75.33
75.57
75.79
75.87
75.92
758.08
77.44
78.74
78.97
78.99
79.78
8.74
80.62
81.92
82.14
82.22
82.27
83.79
85.09
85.32
85.34
88.27
88.49
88.57
88.62
89.69
9.12
9.19
9.25
9.93
91.44
91.67
91.69
94.62
94.84
94.92
94.97
97.79
98.02
98.04