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FRACTIONAL INCH O-RING SIZE CHART
REFERENCE ONLY; NOMINAL
NOT ACTUAL SIZES
AS568 dash number appears to right of O-Ring inside diameter (I.D.) and below sectional diameter.
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SECTION
I.D.
1/16 3/32
1/8 3/16
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SECTION
I.D. 1/16
3/32 1/8
3/16 1/4
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SECTION
I.D. 3/32
1/8 3/16
1/4
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1/32 001*
3/64 002*
1/16 003 102
5/64 004
3/32 005 103
1/8 006 104
5/32 007 105
3/16 008 106 201
7/32 009 107
1/4 010 108 202
5/16 011 109 203
3/8 012 110 204
7/16 013 111 205 309
1/2 014 112 206 310
9/16 015 113 207 311
5/8 016 114 208 312
11/16 017 115 209 313
3/4 018 116 210 314
13/16 019 117 211 315
7/8 020 118 212 316
15/16 021 119 213 317
1 022 120 214 318
11/16
023 121 215 319
11/8
024 122 216 320
13/16
025 123 217 321
11/4
026 124 218 322
15/16
027 125 219 323
13/8
028 126 220 324
17/16 127 221
11/2
029 128 222 325
19/16
129
15/8
030 130 223 326
111/16 131
13/4
031 132 224 327
113/16 133
17/8
032 134 225 328
115/16 135
2 033 136 226 329
21/16
137
21/8
034 138 227 330
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7 167 262 365 441
71/4 168 263 366 442
71/2 169 264 367 443
73/4 170 265 368 444
8 171 266 369 445
81/4 172 267 370
81/2 173 268 371 446
83/4 174 269 372
9 175 270 373 447
91/4 176 271 374
91/2 177 272 375 448
93/4 178 273 376
10 274 377 449
101/2 275 378 450
11 276 379 451
111/2 277 380 452
12 278 381 453
121/2 454
13 279 382 455
131/2 456
14 280 383 457
141/2 458
15 281 384 459
151/2 460
16 282 385 461
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161/2
462
17 283 386 463
171/2 464
18 284 387 465
181/2 466
19 388 467
191/2 468
20 389 469
21 390 470
22 391 471
23 392 472
24 393 473
25 394 474
26 394 475
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* Section diameter of AS568-001 is
1/32. Section diameter of AS568-002 is
3/64.
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