JIS Aflas O-Rings | OneMonroe

OneMonroe Aflas O-Rings are crafted to meet the demanding needs of applications that require robust chemical and thermal resistance. Made from premium-quality Aflas, these O-rings are designed to withstand exposure to a wide range of chemicals, including acids, alkalis, amines, and steam, making them an essential component in industrial settings where chemical integrity is critical. They excel in high-temperature environments, withstanding heat up to 446°F (230°C), which makes them an excellent choice for applications in the automotive, aerospace, and oil and gas industries where durability and safety are non-negotiable. Their resilience ensures optimal performance in even the harshest operational conditions.

OneMonroe’s Aflas O-Rings adhere to the JIS (Japanese Industrial Standards), which means they are meticulously manufactured for precision and reliability. These O-rings are particularly valuable for equipment that operates in demanding environments with extended exposure to chemicals, oils, or extreme heat, as they prevent leaks and ensure the longevity of components. Whether used in pumps, valves, or compressors, OneMonroe Aflas O-Rings maintain their integrity and performance over extended periods, helping to minimize downtime and repair costs for critical machinery. Additionally, their resistance to electrical conductivity makes them highly suitable for electrical and electronic applications where insulation is essential.

At OneMonroe, we are committed to delivering products that match the highest standards of quality and reliability. Our Aflas O-Rings undergo rigorous quality testing to ensure they meet stringent industry requirements, giving our clients peace of mind knowing they have dependable sealing solutions. With the combination of chemical resistance, thermal durability, and precision manufacturing, OneMonroe Aflas O-Rings offer unmatched performance for various industries, providing the strength and reliability needed in today’s challenging industrial environments.

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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Item #	IntegrationID	Type	Material	Cross Section Width	Durometer	Inside Diameter	CSW Tolerance	ID Tolerance	JIS Number

G25 AFLAS-75	N/A 180571	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.122 in3.10 mm	N/A 75	N/A 24.40 mm0.961 in	N/A 0.004 in0.10 mm	N/A 0.006 in0.15 mm	N/A G-25
G25 AFLAS-83	N/A 180572	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.122 in3.10 mm	N/A 83	N/A 24.40 mm0.961 in	N/A 0.004 in0.10 mm	N/A 0.006 in0.15 mm	N/A G-25
G250 AFLAS-75	N/A 180573	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.224 in5.70 mm	N/A 75	N/A 249.3 mm9.815 in	N/A 0.006 in0.15 mm	N/A 0.031 in0.80 mm	N/A G-250
G250 AFLAS-83	N/A 180574	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.224 in5.70 mm	N/A 83	N/A 249.3 mm9.815 in	N/A 0.006 in0.15 mm	N/A 0.031 in0.80 mm	N/A G-250
G255 AFLAS-75	N/A 180575	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.224 in5.70 mm	N/A 75	N/A 254.3 mm10.012 in	N/A 0.006 in0.15 mm	N/A 0.031 in0.80 mm	N/A G-255
G255 AFLAS-83	N/A 180576	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.224 in5.70 mm	N/A 83	N/A 254.3 mm10.012 in	N/A 0.006 in0.15 mm	N/A 0.031 in0.80 mm	N/A G-255
G260 AFLAS-75	N/A 180577	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.224 in5.70 mm	N/A 75	N/A 259.3 mm10.209 in	N/A 0.006 in0.15 mm	N/A 0.031 in0.80 mm	N/A G-260
G260 AFLAS-83	N/A 180578	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.224 in5.70 mm	N/A 83	N/A 259.3 mm10.209 in	N/A 0.006 in0.15 mm	N/A 0.031 in0.80 mm	N/A G-260
G270 AFLAS-75	N/A 180579	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.224 in5.70 mm	N/A 75	N/A 269.3 mm10.602 in	N/A 0.006 in0.15 mm	N/A 0.031 in0.80 mm	N/A G-270
G270 AFLAS-83	N/A 180580	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.224 in5.70 mm	N/A 83	N/A 269.3 mm10.602 in	N/A 0.006 in0.15 mm	N/A 0.031 in0.80 mm	N/A G-270
G280 AFLAS-75	N/A 180581	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.224 in5.70 mm	N/A 75	N/A 279.30 mm10.996 in	N/A 0.006 in0.15 mm	N/A 0.031 in0.80 mm	N/A G-280
G280 AFLAS-83	N/A 180582	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.224 in5.70 mm	N/A 83	N/A 279.30 mm10.996 in	N/A 0.006 in0.15 mm	N/A 0.031 in0.80 mm	N/A G-280
G290 AFLAS-75	N/A 180583	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.224 in5.70 mm	N/A 75	N/A 289.30 mm11.390 in	N/A 0.006 in0.15 mm	N/A 0.031 in0.80 mm	N/A G-290
G290 AFLAS-83	N/A 180584	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.224 in5.70 mm	N/A 83	N/A 289.30 mm11.390 in	N/A 0.006 in0.15 mm	N/A 0.031 in0.80 mm	N/A G-290
G30 AFLAS-75	N/A 180585	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.122 in3.10 mm	N/A 75	N/A 29.40 mm1.157 in	N/A 0.004 in0.10 mm	N/A 0.006 in0.15 mm	N/A G-30
G30 AFLAS-83	N/A 180586	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.122 in3.10 mm	N/A 83	N/A 29.40 mm1.157 in	N/A 0.004 in0.10 mm	N/A 0.006 in0.15 mm	N/A G-30
G300 AFLAS-75	N/A 180587	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.224 in5.70 mm	N/A 75	N/A 299.30 mm11.783 in	N/A 0.006 in0.15 mm	N/A 0.031 in0.80 mm	N/A G-300
G300 AFLAS-83	N/A 180588	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.224 in5.70 mm	N/A 83	N/A 299.30 mm11.783 in	N/A 0.006 in0.15 mm	N/A 0.031 in0.80 mm	N/A G-300
G35 AFLAS-75	N/A 180589	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.122 in3.10 mm	N/A 75	N/A 34.40 mm1.354 in	N/A 0.004 in0.10 mm	N/A 0.006 in0.15 mm	N/A G-35
G35 AFLAS-83	N/A 180590	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.122 in3.10 mm	N/A 83	N/A 34.40 mm1.354 in	N/A 0.004 in0.10 mm	N/A 0.006 in0.15 mm	N/A G-35
G40 AFLAS-75	N/A 180591	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.122 in3.10 mm	N/A 75	N/A 39.40 mm1.551 in	N/A 0.004 in0.10 mm	N/A 0.006 in0.15 mm	N/A G-40
G40 AFLAS-83	N/A 180592	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.122 in3.10 mm	N/A 83	N/A 39.40 mm1.551 in	N/A 0.004 in0.10 mm	N/A 0.006 in0.15 mm	N/A G-40
G45 AFLAS-75	N/A 180593	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.122 in3.10 mm	N/A 75	N/A 44.40 mm1.748 in	N/A 0.004 in0.10 mm	N/A 0.01 in0.25 mm	N/A G-45
G45 AFLAS-83	N/A 180594	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.122 in3.10 mm	N/A 83	N/A 44.40 mm1.748 in	N/A 0.004 in0.10 mm	N/A 0.01 in0.25 mm	N/A G-45
G50 AFLAS-75	N/A 180595	N/A JIS Standard O-Ring	N/A Aflas	N/A 0.122 in3.10 mm	N/A 75	N/A 49.40 mm1.945 in	N/A 0.004 in0.10 mm	N/A 0.01 in0.25 mm	N/A G-50

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10.70
10.80
101.60
104.40
104.50
104.60
1044.00
109.40
109.50
109.60
11.00
11.50
11.80
111.50
111.60
114.40
114.50
114.60
119.00
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119.60
12.00
12.30
124.40
124.50
124.60
129.40
129.50
129.60
13.50
13.80
131.50
131.6
134.40
134.50
134.60
139.40
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139.60
14.5
14.80
144.40
144.50
144.60
148.50
149.30
149.50
149.6
15.50
15.80
154.30
154.50
159.30
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169.50
17.50
17.80
173.00
174.30
174.50
179.30
179.50
184.30
184.50
189.30
189.50
19.50
19.80
194.30
194.50
199.3
199.5
2.50
20.80
204.5
208.5
209.3
209.5
21.50
21.70
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21.90
214.5
219.3
219.5
22.10
222.5
224.5
229.3
229.5
23.5
23.70
234.5
239.3
239.5
24.40
24.50
24.70
244.5
249.3
249.5
25.20
25.50
25.70
254.3
254.5
259.3
259.5
264.5
269.3
269.5
27.50
27.70
272
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28.70
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29.20
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29.70
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299.30
299.50
3.50
3.80
30.70
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31.20
31.50
31.70
314.50
319.50
321.50
33.50
33.70
334.50
339.50
34.40
34.50
34.70
35.00
35.20
35.50
35.70
354.50
359.50
37.50
37.70
374.50
376.00
38.50
38.70
384.50
39.40
39.50
39.70
399.5
4.50
4.80
40.70
41.50
41.70
425.5
43.50
43.70
44.40
44.50
44.70
45.5
45.70
47.50
47.60
47.70
475.00
48.70
49.40
49.50
49.60
49.70
5.50
5.80
51.60
52.50
52.6
524.5
54.40
54.50
54.60
55.50
55.60
57.60
579.00
59.4
59.50
59.6
6.50
6.80
61.60
62.50
62.60
633.5
64.40
64.5
64.60
66.50
66.60
683.00
69.00
69.4
69.5
69.6
7.50
7.80
70.50
70.60
732.50
74.40
74.50
74.60
782.00
79.40
79.50
79.60
8.50
8.80
836.50
84.00
84.40
84.50
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89.40
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0.098
0.138
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0.374
0.386
0.421
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0.433
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0.583
0.610
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0.689
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0.819
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1.004
1.012
1.083
1.091
1.122
1.130
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1.157
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1.209
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1.319
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1.354
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1.386
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1.484
1.516
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1.634
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1.713
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1.748
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1.791
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1.917
1.945
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10.012
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10.209
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10.413
10.602
10.610
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10.996
11.004
11.201
11.390
11.398
11.594
11.783
11.791
12.382
12.579
12.657
13.169
13.366
13.957
14.154
14.744
14.803
15.138
15.728
16.752
18.701
2.031
2.067
2.071
2.142
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2.150
2.185
2.189
2.268
2.339
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2.346
2.425
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2.535
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2.618
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2.717
2.732
2.736
2.740
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2.780
2.929
2.933
2.937
20.650
22.795
24.941
26.890
28.839
3.126
3.130
3.134
3.307
3.323
3.327
3.331
3.520
3.524
3.528
3.717
3.720
3.724
3.898
3.913
3.917
3.921
30.787
32.933
37.028
4.000
4.110
4.114
4.118
4.307
4.311
4.315
4.390
4.394
4.504
4.508
4.512
4.685
4.701
4.705
4.709
4.898
4.902
4.906
41.102
5.094
5.098
5.102
5.177
5.181
5.291
5.295
5.299
5.488
5.492
5.496
5.685
5.689
5.693
5.846
5.878
5.886
5.890
6.075
6.083
6.272
6.280
6.469
6.476
6.665
6.673
6.811
6.862
6.870
7.059
7.067
7.256
7.264
7.453
7.461
7.650
7.657
7.846
7.854
8.051
8.209
8.240
8.248
8.445
8.634
8.642
8.760
8.839
9.028
9.035
9.232
9.421
9.429
9.626
9.815
9.823