O-Ring Cross Section – 0.139 in. (3.53 mm), 1/8″ nominal, Sizes 251-284
$1.50 – $10.76
- 70 Durometer Nitrile/Buna N/NBR Rubber
- Compound N-7002
- Temperature Range: -40 to 250 °F
- Availble in other materials, call for quote.
- Minimum order product line is $200.00
- Large quantity discounts available, call for quote.
Size AS568A Internal Diameter
in InchesInternal Diameter
in MillimetersNominal Size
in InchesI.D. Tol. +/- I.D. Tol. +/- I.D. O.D. 251 5.109 0.035 129.77 0.89 5-1/8 5-3/8 252 5.234 0.035 132.94 0.89 5-1/4 5-1/2 253 5.359 0.035 136.12 0.89 5-3/8 5-5/8 254 5.484 0.035 139.30 0.89 5-1/2 5-3/4 255 5.609 0.035 142.47 0.89 5-5/8 5-7/8 256 5.734 0.035 145.65 0.89 5-3/4 6 257 5.859 0.035 148.82 0.89 5-7/8 6-1/8 258 5.984 0.035 152.00 0.89 6 6-1/4 259 6.234 0.040 158.35 1.02 6-1/4 6-1/2 260 6.484 0.040 164.70 1.02 6-1/2 6-3/4 261 6.734 0.040 171.05 1.02 6-3/4 7 262 6.984 0.040 177.40 1.02 7 7-1/4 263 7.234 0.045 183.75 1.14 7-1/4 7-1/2 264 7.484 0.045 190.10 1.14 7-1/2 7-3/4 265 7.734 0.045 196.45 1.14 7-3/4 8 266 7.984 0.045 202.80 1.14 8 8-1/4 267 8.234 0.050 209.15 1.27 8-1/4 8-1/2 268 8.484 0.050 215.50 1.27 8-1/2 8-3/4 269 8.734 0.050 221.85 1.27 8-3/4 9 270 8.984 0.050 228.20 1.27 9 9-1/4 271 9.234 0.055 234.55 1.40 9-1/4 9-1/2 272 9.484 0.055 240.90 1.40 9-1/2 9-3/4 273 9.734 0.055 247.25 1.40 9-3/4 10 274 9.984 0.055 253.60 1.40 10 10-1/4 275 10.484 0.055 266.30 1.40 10-1/2 10-3/4 276 10.984 0.065 279.00 1.65 11 11-1/4 277 11.484 0.065 291.70 1.65 11-1/2 11-3/4 278 11.984 0.065 304.40 1.65 12 12-1/4 279 12.984 0.065 329.80 1.65 13 13-1/4 280 13.984 0.065 355.20 1.65 14 14-1/4 281 14.984 0.065 380.60 1.65 15 15-1/4 282 15.955 0.075 405.26 1.91 16 16-1/4 283 16.955 0.080 430.66 2.03 17 17-1/4 284 17.955 0.085 456.06 2.16 18 18-1/4
