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Seal: O-ring

ISO 3601-1

ISO 3601-1 - Fluid power systems - O-rings - Part 1: Inside diameters, cross-sections, tolerances and designation codes

Automatically build standard products in SOLIDWORKS with TSFP.

O-rings of circular cross-section for seals in fluid power systems. ISO 3601-1:2012 specifies the inside diameter d1, the cross-section diameter d2, their tolerances and the size codes: codes 001–475 are the general industrial sizes (Tables 1–6, tolerance class A or B), codes A0018–E4000 the aerospace sizes (Tables 7–11).

ISO 3601-1

Geometry

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Inner diameter
Cross-section diameter
Outer diameter
Product Inner diameter, mm Cross-section diameter, mm Centerline diameter, mm Outer diameter, mm Nominal size code
ISO 3601-1 O-ring 427 120.02x6.99 120.02 6.99 127.01* 134* 427
ISO 3601-1 O-ring 428 123.19x6.99 123.19 6.99 130.18* 137.17* 428
ISO 3601-1 O-ring 429 126.37x6.99 126.37 6.99 133.36* 140.35* 429
ISO 3601-1 O-ring 430 129.54x6.99 129.54 6.99 136.53* 143.52* 430
ISO 3601-1 O-ring 431 132.72x6.99 132.72 6.99 139.71* 146.7* 431
ISO 3601-1 O-ring 432 135.89x6.99 135.89 6.99 142.88* 149.87* 432
ISO 3601-1 O-ring 433 139.07x6.99 139.07 6.99 146.06* 153.05* 433
ISO 3601-1 O-ring 434 142.24x6.99 142.24 6.99 149.23* 156.22* 434
ISO 3601-1 O-ring 435 145.42x6.99 145.42 6.99 152.41* 159.4* 435
ISO 3601-1 O-ring 436 148.59x6.99 148.59 6.99 155.58* 162.57* 436
ISO 3601-1 O-ring 437 151.77x6.99 151.77 6.99 158.76* 165.75* 437
ISO 3601-1 O-ring 438 158.12x6.99 158.12 6.99 165.11* 172.1* 438
ISO 3601-1 O-ring 439 164.47x6.99 164.47 6.99 171.46* 178.45* 439
ISO 3601-1 O-ring 440 170.82x6.99 170.82 6.99 177.81* 184.8* 440
ISO 3601-1 O-ring 441 177.17x6.99 177.17 6.99 184.16* 191.15* 441
ISO 3601-1 O-ring 442 183.52x6.99 183.52 6.99 190.51* 197.5* 442
ISO 3601-1 O-ring 443 189.87x6.99 189.87 6.99 196.86* 203.85* 443
ISO 3601-1 O-ring 444 196.22x6.99 196.22 6.99 203.21* 210.2* 444
ISO 3601-1 O-ring 445 202.57x6.99 202.57 6.99 209.56* 216.55* 445
ISO 3601-1 O-ring 446 215.27x6.99 215.27 6.99 222.26* 229.25* 446
ISO 3601-1 O-ring 447 227.97x6.99 227.97 6.99 234.96* 241.95* 447
ISO 3601-1 O-ring 448 240.67x6.99 240.67 6.99 247.66* 254.65* 448
ISO 3601-1 O-ring 449 253.37x6.99 253.37 6.99 260.36* 267.35* 449
ISO 3601-1 O-ring 450 266.07x6.99 266.07 6.99 273.06* 280.05* 450
ISO 3601-1 O-ring 451 278.77x6.99 278.77 6.99 285.76* 292.75* 451
ISO 3601-1 O-ring 452 291.47x6.99 291.47 6.99 298.46* 305.45* 452
ISO 3601-1 O-ring 453 304.17x6.99 304.17 6.99 311.16* 318.15* 453
ISO 3601-1 O-ring 454 316.87x6.99 316.87 6.99 323.86* 330.85* 454
ISO 3601-1 O-ring 455 329.57x6.99 329.57 6.99 336.56* 343.55* 455
ISO 3601-1 O-ring 456 342.27x6.99 342.27 6.99 349.26* 356.25* 456
ISO 3601-1 O-ring 457 354.97x6.99 354.97 6.99 361.96* 368.95* 457
ISO 3601-1 O-ring 458 367.67x6.99 367.67 6.99 374.66* 381.65* 458
ISO 3601-1 O-ring 459 380.37x6.99 380.37 6.99 387.36* 394.35* 459
ISO 3601-1 O-ring 460 393.07x6.99 393.07 6.99 400.06* 407.05* 460
ISO 3601-1 O-ring 461 405.26x6.99 405.26 6.99 412.25* 419.24* 461
ISO 3601-1 O-ring 462 417.96x6.99 417.96 6.99 424.95* 431.94* 462
ISO 3601-1 O-ring 463 430.66x6.99 430.66 6.99 437.65* 444.64* 463
ISO 3601-1 O-ring 464 443.36x6.99 443.36 6.99 450.35* 457.34* 464
ISO 3601-1 O-ring 465 456.06x6.99 456.06 6.99 463.05* 470.04* 465
ISO 3601-1 O-ring 466 468.76x6.99 468.76 6.99 475.75* 482.74* 466
ISO 3601-1 O-ring 467 481.46x6.99 481.46 6.99 488.45* 495.44* 467
ISO 3601-1 O-ring 468 494.16x6.99 494.16 6.99 501.15* 508.14* 468
ISO 3601-1 O-ring 469 506.86x6.99 506.86 6.99 513.85* 520.84* 469
ISO 3601-1 O-ring 470 532.26x6.99 532.26 6.99 539.25* 546.24* 470
ISO 3601-1 O-ring 471 557.66x6.99 557.66 6.99 564.65* 571.64* 471
ISO 3601-1 O-ring 472 582.68x6.99 582.68 6.99 589.67* 596.66* 472
ISO 3601-1 O-ring 473 608.08x6.99 608.08 6.99 615.07* 622.06* 473
ISO 3601-1 O-ring 474 633.48x6.99 633.48 6.99 640.47* 647.46* 474
ISO 3601-1 O-ring 475 658.88x6.99 658.88 6.99 665.87* 672.86* 475
ISO 3601-1 O-ring A0018 1.8x1.8 1.8 1.8 3.6* 5.4* A0018
ISO 3601-1 O-ring A0020 2x1.8 2 1.8 3.8* 5.6* A0020
ISO 3601-1 O-ring A0022 2.24x1.8 2.24 1.8 4.04* 5.84* A0022
ISO 3601-1 O-ring A0025 2.5x1.8 2.5 1.8 4.3* 6.1* A0025
ISO 3601-1 O-ring A0028 2.8x1.8 2.8 1.8 4.6* 6.4* A0028
ISO 3601-1 O-ring A0032 3.15x1.8 3.15 1.8 4.95* 6.75* A0032
ISO 3601-1 O-ring A0036 3.55x1.8 3.55 1.8 5.35* 7.15* A0036
ISO 3601-1 O-ring A0038 3.75x1.8 3.75 1.8 5.55* 7.35* A0038
ISO 3601-1 O-ring A0040 4x1.8 4 1.8 5.8* 7.6* A0040
ISO 3601-1 O-ring A0045 4.5x1.8 4.5 1.8 6.3* 8.1* A0045
ISO 3601-1 O-ring A0049 4.87x1.8 4.87 1.8 6.67* 8.47* A0049
ISO 3601-1 O-ring A0050 5x1.8 5 1.8 6.8* 8.6* A0050
ISO 3601-1 O-ring A0052 5.15x1.8 5.15 1.8 6.95* 8.75* A0052
ISO 3601-1 O-ring A0053 5.3x1.8 5.3 1.8 7.1* 8.9* A0053
ISO 3601-1 O-ring A0056 5.6x1.8 5.6 1.8 7.4* 9.2* A0056
ISO 3601-1 O-ring A0060 6x1.8 6 1.8 7.8* 9.6* A0060
ISO 3601-1 O-ring A0063 6.3x1.8 6.3 1.8 8.1* 9.9* A0063
ISO 3601-1 O-ring A0067 6.7x1.8 6.7 1.8 8.5* 10.3* A0067
ISO 3601-1 O-ring A0069 6.9x1.8 6.9 1.8 8.7* 10.5* A0069
ISO 3601-1 O-ring A0071 7.1x1.8 7.1 1.8 8.9* 10.7* A0071
ISO 3601-1 O-ring A0075 7.5x1.8 7.5 1.8 9.3* 11.1* A0075
ISO 3601-1 O-ring A0080 8x1.8 8 1.8 9.8* 11.6* A0080
ISO 3601-1 O-ring A0085 8.5x1.8 8.5 1.8 10.3* 12.1* A0085
ISO 3601-1 O-ring A0088 8.75x1.8 8.75 1.8 10.55* 12.35* A0088
ISO 3601-1 O-ring A0090 9x1.8 9 1.8 10.8* 12.6* A0090
ISO 3601-1 O-ring A0095 9.5x1.8 9.5 1.8 11.3* 13.1* A0095
ISO 3601-1 O-ring A0100 10x1.8 10 1.8 11.8* 13.6* A0100
ISO 3601-1 O-ring A0106 10.6x1.8 10.6 1.8 12.4* 14.2* A0106
ISO 3601-1 O-ring A0112 11.2x1.8 11.2 1.8 13* 14.8* A0112
ISO 3601-1 O-ring A0118 11.8x1.8 11.8 1.8 13.6* 15.4* A0118
ISO 3601-1 O-ring A0125 12.5x1.8 12.5 1.8 14.3* 16.1* A0125
ISO 3601-1 O-ring A0132 13.2x1.8 13.2 1.8 15* 16.8* A0132
ISO 3601-1 O-ring A0140 14x1.8 14 1.8 15.8* 17.6* A0140
ISO 3601-1 O-ring A0150 15x1.8 15 1.8 16.8* 18.6* A0150
ISO 3601-1 O-ring A0160 16x1.8 16 1.8 17.8* 19.6* A0160
ISO 3601-1 O-ring A0170 17x1.8 17 1.8 18.8* 20.6* A0170
ISO 3601-1 O-ring A0180 18x1.8 18 1.8 19.8* 21.6* A0180
ISO 3601-1 O-ring A0190 19x1.8 19 1.8 20.8* 22.6* A0190
ISO 3601-1 O-ring A0200 20x1.8 20 1.8 21.8* 23.6* A0200
ISO 3601-1 O-ring A0212 21.2x1.8 21.2 1.8 23* 24.8* A0212
ISO 3601-1 O-ring A0224 22.4x1.8 22.4 1.8 24.2* 26* A0224
ISO 3601-1 O-ring A0236 23.6x1.8 23.6 1.8 25.4* 27.2* A0236
ISO 3601-1 O-ring A0250 25x1.8 25 1.8 26.8* 28.6* A0250
ISO 3601-1 O-ring A0258 25.8x1.8 25.8 1.8 27.6* 29.4* A0258
ISO 3601-1 O-ring A0265 26.5x1.8 26.5 1.8 28.3* 30.1* A0265
ISO 3601-1 O-ring A0280 28x1.8 28 1.8 29.8* 31.6* A0280
ISO 3601-1 O-ring A0300 30x1.8 30 1.8 31.8* 33.6* A0300
ISO 3601-1 O-ring A0315 31.5x1.8 31.5 1.8 33.3* 35.1* A0315
ISO 3601-1 O-ring A0325 32.5x1.8 32.5 1.8 34.3* 36.1* A0325
ISO 3601-1 O-ring A0335 33.5x1.8 33.5 1.8 35.3* 37.1* A0335
ISO 3601-1 O-ring A0345 34.5x1.8 34.5 1.8 36.3* 38.1* A0345

* Calculated value: worked out from the dimensions the standard specifies, not listed in the standard itself.