P계열 오링의 규격은 JIS B 2401로 일본 규격입니다. 주로 아시아권에서 사용이 많이 되고 있으며, 단위는 mm입니다. 사용되는 재질은 NBR, SILICONE, EPDM, VITION 등이 있습니다.
P계열 (P2-P50)
| 호칭 | 내경 | 외경 | 두께 | 호칭 | 내경 | 외경 | 두께 |
|---|---|---|---|---|---|---|---|
| P-2 | 1.8 | 5.6 | 1.9 | P-25 | 24.7 | 31.7 | 3.5 |
| P-3 | 2.8 | 6.6 | 1.9 | P-25.5 | 25.2 | 32.2 | 3.5 |
| P-4 | 3.8 | 7.6 | 1.9 | P-26 | 25.7 | 32.7 | 3.5 |
| P-5 | 4.8 | 8.6 | 1.9 | P-27 | 26.7 | 33.7 | 3.5 |
| P-6 | 5.8 | 9.6 | 1.9 | P-28 | 27.7 | 34.7 | 3.5 |
| P-7 | 6.8 | 10.6 | 1.9 | P-29 | 28.7 | 35.7 | 3.5 |
| P-8 | 7.8 | 11.6 | 1.9 | P-29.5 | 29.2 | 36.2 | 3.5 |
| P-8A | 7.8 | 12.6 | 2.4 | P-30 | 29.7 | 36.7 | 3.5 |
| P-9 | 8.8 | 12.6 | 1.9 | P-31 | 30.7 | 37.7 | 3.5 |
| P-9A | 8.8 | 13.6 | 2.4 | P-31.5 | 31.2 | 38.2 | 3.5 |
| P-10 | 9.8 | 13.6 | 1.9 | P-32 | 31.7 | 38.7 | 3.5 |
| P-10A | 9.8 | 14.6 | 2.4 | P-34 | 33.7 | 40.7 | 3.5 |
| P-11 | 10.8 | 15.6 | 2.4 | P-35 | 34.7 | 41.7 | 3.5 |
| P-11.2 | 11 | 15.8 | 2.4 | P-35.5 | 35.2 | 42.2 | 3.5 |
| P-12 | 11.8 | 16.6 | 2.4 | P-36 | 35.7 | 42.7 | 3.5 |
| P-12.5 | 12.3 | 17.1 | 2.4 | P-38 | 37.7 | 44.7 | 3.5 |
| P-13 | 12.8 | 17.6 | 2.4 | P-39 | 38.7 | 45.7 | 3.5 |
| P-14 | 13.8 | 18.6 | 2.4 | P-40 | 39.7 | 46.7 | 3.5 |
| P-15 | 14.8 | 19.6 | 2.4 | P-41 | 40.7 | 47.7 | 3.5 |
| P-16 | 15.8 | 20.6 | 2.4 | P-42 | 41.7 | 48.7 | 3.5 |
| P-17 | 16.8 | 21.6 | 2.4 | P-43 | 42.7 | 49.7 | 3.5 |
| P-18 | 17.8 | 22.6 | 2.4 | P-44 | 43.7 | 50.7 | 3.5 |
| P-19 | 18.8 | 23.6 | 2.4 | P-45 | 44.7 | 51.7 | 3.5 |
| P-20 | 19.8 | 24.6 | 2.4 | P-46 | 45.7 | 52.7 | 3.5 |
| P-21 | 20.8 | 25.6 | 2.4 | P-48 | 47.7 | 54.7 | 3.5 |
| P-22 | 21.8 | 26.6 | 2.4 | P-48A | 47.6 | 59 | 5.7 |
| P-22A | 21.7 | 28.7 | 3.5 | P-49 | 48.7 | 55.7 | 3.5 |
| P-22.4 | 22.1 | 29.1 | 3.5 | P-50 | 49.7 | 56.7 | 3.5 |
| P-24 | 23.7 | 30.7 | 3.5 |
P계열 (P50A-P150)
| 호칭 | 내경 | 외경 | 두께 | 호칭 | 내경 | 외경 | 두께 |
|---|---|---|---|---|---|---|---|
| P-50A | 49.6 | 61 | 5.7 | P-90 | 89.6 | 101 | 5.7 |
| P-52 | 51.6 | 63 | 5.7 | P-95 | 94.6 | 106 | 5.7 |
| P-53 | 52.6 | 64 | 5.7 | P-100 | 99.6 | 111 | 5.7 |
| P-55 | 54.6 | 66 | 5.7 | P-102 | 101.6 | 113 | 5.7 |
| P-56 | 55.6 | 67 | 5.7 | P-105 | 104.6 | 116 | 5.7 |
| P-58 | 57.6 | 69 | 5.7 | P-110 | 109.6 | 121 | 5.7 |
| P-60 | 59.6 | 71 | 5.7 | P-112 | 111.6 | 123 | 5.7 |
| P-62 | 61.6 | 73 | 5.7 | P-115 | 114.6 | 126 | 5.7 |
| P-63 | 62.6 | 74 | 5.7 | P-120 | 119.6 | 131 | 5.7 |
| P-65 | 64.6 | 76 | 5.7 | P-125 | 124.6 | 136 | 5.7 |
| P-67 | 66.6 | 78 | 5.7 | P-130 | 129.6 | 141 | 5.7 |
| P-70 | 69.6 | 81 | 5.7 | P-132 | 131.6 | 143 | 5.7 |
| P-71 | 70.6 | 82 | 5.7 | P-135 | 134.6 | 146 | 5.7 |
| P-75 | 74.6 | 86 | 5.7 | P-140 | 139.6 | 151 | 5.7 |
| P-80 | 79.6 | 91 | 5.7 | P-145 | 144.6 | 156 | 5.7 |
| P-85 | 84.6 | 96 | 5.7 | P-150 | 149.6 | 161 | 5.7 |
P계열 (P150A-P395)
| 호칭 | 내경 | 외경 | 두께 | 호칭 | 내경 | 외경 | 두께 |
|---|---|---|---|---|---|---|---|
| P-150A | 149.5 | 166.3 | 8.4 | P-270 | 269.5 | 286.3 | 8.4 |
| P-155A | 154.5 | 171.3 | 8.4 | P-275 | 274.5 | 291.3 | 8.4 |
| P-160 | 159.5 | 176.3 | 8.4 | P-280 | 279.5 | 296.3 | 8.4 |
| P-165 | 164.5 | 181.3 | 8.4 | P-285 | 284.5 | 301.3 | 8.4 |
| P-170 | 169.5 | 186.3 | 8.4 | P-290 | 289.5 | 306.3 | 8.4 |
| P-175 | 174.5 | 191.3 | 8.4 | P-295 | 294.5 | 311.3 | 8.4 |
| P-180 | 179.5 | 196.3 | 8.4 | P-300 | 299.5 | 316.3 | 8.4 |
| P-185 | 184.5 | 201.3 | 8.4 | P-305 | 304.5 | 321.3 | 8.4 |
| P-190 | 189.5 | 206.3 | 8.4 | P-310 | 309.5 | 326.3 | 8.4 |
| P-195 | 194.5 | 211.3 | 8.4 | P-315 | 314.5 | 331.3 | 8.4 |
| P-200 | 199.5 | 216.3 | 8.4 | P-320 | 319.5 | 336.3 | 8.4 |
| P-205 | 204.5 | 221.3 | 8.4 | P-325 | 324.5 | 341.3 | 8.4 |
| P-209 | 208.5 | 225.3 | 8.4 | P-330 | 329.5 | 346.3 | 8.4 |
| P-210 | 209.5 | 226.3 | 8.4 | P-335 | 334.5 | 351.3 | 8.4 |
| P-215 | 214.5 | 231.3 | 8.4 | P-340 | 339.5 | 356.3 | 8.4 |
| P-220 | 219.5 | 236.3 | 8.4 | P-345 | 344.5 | 361.3 | 8.4 |
| P-225 | 224.5 | 241.3 | 8.4 | P-350 | 349.5 | 366.3 | 8.4 |
| P-230 | 229.5 | 246.3 | 8.4 | P-355 | 354.5 | 371.3 | 8.4 |
| P-235 | 234.5 | 251.3 | 8.4 | P-360 | 359.5 | 376.3 | 8.4 |
| P-240 | 239.5 | 256.3 | 8.4 | P-370 | 369.5 | 386.3 | 8.4 |
| P-245 | 244.5 | 261.3 | 8.4 | P-375 | 374.5 | 391.3 | 8.4 |
| P-250 | 249.5 | 266.3 | 8.4 | P-380 | 379.5 | 396.3 | 8.4 |
| P-255 | 254.5 | 271.3 | 8.4 | P-385 | 384.5 | 401.3 | 8.4 |
| P-260 | 259.5 | 276.3 | 8.4 | P-390 | 389.5 | 406.3 | 8.4 |
| P-265 | 264.5 | 281.3 | 8.4 | P-395 | 394.5 | 411.3 | 8.4 |
P계열 (P400-P800)
| 호칭 | 내경 | 외경 | 두께 | 호칭 | 내경 | 외경 | 두께 |
|---|---|---|---|---|---|---|---|
| P-400 | 399.5 | 416.3 | 8.4 | P-575 | 574.5 | 591.3 | 8.4 |
| P-405 | 404.5 | 421.3 | 8.4 | P-580 | 579.5 | 596.3 | 8.4 |
| P-410 | 409.5 | 426.3 | 8.4 | P-590 | 589.5 | 606.3 | 8.4 |
| P-420 | 419.5 | 436.3 | 8.4 | P-600 | 599.5 | 616.3 | 8.4 |
| P-430 | 429.5 | 446.3 | 8.4 | P-610 | 609.5 | 626.3 | 8.4 |
| P-440 | 439.5 | 456.3 | 8.4 | P-620 | 619.5 | 636.3 | 8.4 |
| P-450 | 449.5 | 466.3 | 8.4 | P-630 | 629.5 | 646.3 | 8.4 |
| P-460 | 459.5 | 476.3 | 8.4 | P-640 | 639.5 | 656.3 | 8.4 |
| P-465 | 464.5 | 481.3 | 8.4 | P-650 | 649.5 | 666.3 | 8.4 |
| P-470 | 469.5 | 486.3 | 8.4 | P-660 | 659.5 | 676.3 | 8.4 |
| P-480 | 479.5 | 496.3 | 8.4 | P-670 | 669.5 | 686.3 | 8.4 |
| P-490 | 489.5 | 506.3 | 8.4 | P-680 | 679.5 | 696.3 | 8.4 |
| P-500 | 499.5 | 516.3 | 8.4 | P-690 | 689.5 | 706.3 | 8.4 |
| P-505 | 504.5 | 521.3 | 8.4 | P-700 | 699.5 | 716.3 | 8.4 |
| P-510 | 509.5 | 526.3 | 8.4 | P-710 | 709.5 | 726.3 | 8.4 |
| P-515 | 514.5 | 531.3 | 8.4 | P-720 | 719.5 | 736.3 | 8.4 |
| P-520 | 519.5 | 536.3 | 8.4 | P-730 | 729.5 | 746.3 | 8.4 |
| P-525 | 524.5 | 541.3 | 8.4 | P-740 | 739.5 | 756.3 | 8.4 |
| P-530 | 529.5 | 546.3 | 8.4 | P-750 | 749.5 | 766.3 | 8.4 |
| P-535 | 534.5 | 551.3 | 8.4 | P-760 | 759.5 | 776.3 | 8.4 |
| P-540 | 539.5 | 556.3 | 8.4 | P-770 | 769.5 | 786.3 | 8.4 |
| P-550 | 549.5 | 566.3 | 8.4 | P-780 | 779.5 | 796.3 | 8.4 |
| P-560 | 559.5 | 576.3 | 8.4 | P-790 | 789.5 | 806.3 | 8.4 |
| P-565 | 564.5 | 581.3 | 8.4 | P-800 | 799.5 | 816.3 | 8.4 |
| P-570 | 569.5 | 586.3 | 8.4 |