SEP product range


‘O’ rings are utilised across a variety of industries in multiple operations from general engineering to aerospace. The ‘O’ ring is the most widely used product in sealing because of its relatively cost effective production methods and overall ease of use.

Specialised Engineering Products can manufacture and supply ‘o’ rings in various grades of elastomer - shore hardnesses can range from 40° to 90° - in a number of sizes no matter whether your requirements are metric, imperial, standard or even custom made.

BS 'O' RING DIMENSION TABLE

SEP can supply the complete range of BS standard sizes. We also manufacture non standard sizes to order and can vulcanise rubber cords for larger sizes. When placing your enquiry / order, please refer to the tables below for all BS 'O' ring dimensions. Also, please state the rubber compound that you require. For more information on the various rubber materials available, please take a look at our Rubber Directory.

how to measure an o ring

Select one of the categories below to view specific 'O' Ring dimensions from that BS Range.

  • + -

    BS001 - BS050


    BS Number O-Ring Size (ID x Cross Section (mm)) Nominal Size (Inches)
        ID OD Cross Section
    BS001 0.74 x 1.02 1/32 3/32 1/32
    BS002 1.07 x 1.27 3/64 9/64 3/64
    BS003 1.42 x 1.52 1/16 3/16 1/16
    BS004 1.78 x 1.78 5/64 13/64 1/16
    BS005 2.57 x 1.78 3/32 7/32 1/16
    BS006 2.90 x 1.78 1/8 1/4 1/16
    BS007 3.68 x 1.78 5/32 9/32 1/16
    BS008 4.47 x 1.78 3/16 5/16 1/16
    BS009 5.28 x 1.78 7/32 11/32 1/16
    BS010 6.07 x 1.78 1/4 3/8 1/16
    BS011 7.65 x 1.78 1/4 3/8 1/16
    BS012 9.25 x 1.78 3/8 1/2 1/16
    BS013 10.82 x 1.78 7/16 9/16 1/16
    BS014 12.42 x 1.78 1/2 5/8 1/16
    BS015 14 x 1.78 9/16 11/16 1/16
    BS016 15.6 x 1.78 5/8 3/4 1/16
    BS017 17.17 x 1.78 11/16 13/16 1/16
    BS018 17.77 x 1.78 3/4 7/8 1/16
    BS019 20.35 x 1.78 13/16 15/16 1/16
    BS020 21.95 x 1.78 7/8 1 1/16
    BS021 23.52 x 1.78 15/16 1 1/16 1/16
    BS022 25.12 x 1.78 1 1 1/8 1/16
    BS023 26.7 x 1.78 1 1/16 1 3/16 1/16
    BS024 28.3 x 1.78 1 1/18 1 1/4 1/16
    BS025 29.87 x 1.78 1 13/16 1 5/16 1/16
    BS026 31.47 x 1.78 1 1/4 1 3/8 1/16
    BS027 33.05 x 1.78 1 5/16 1 7/16 1/16
    BS028 34.65 x 1.78 1 3/8 1 1/2 1/16
    BS029 37.82 x 1.78 1 1/2 1 5/8 1/16
    BS030 41 x 1.78 1 5/8 1 3/4 1/16
    BS031 44.17 x 1.78 1 3/4 1 7/8 1/16
    BS032 47.35 x 1.78 1 7/8 2 1/16
    BS033 50.52 x 1.78 2 2 1/8 1/16
    BS034 53.7 x 1.78 2 1/8 2 1/4 1/16
    BS035 56.87 x 1.78 2 1/4 2 3/8 1/16
    BS036 60.05 x 1.78 2 3/8 2 1/2 1/16
    BS037 63.22 x 1.78 2 1/2 2 5/8 1/16
    BS038 66.4 x 1.78 2 5/8 2 3/4 1/16
    BS039 69.57 x 1.78 2 3/4 2 7/8 1/16
    BS040 72.75 x 1.78 2 7/8 3 1/16
    BS041 75.92 x 1.78 3 3 1/8 1/16
    BS042 82.27 x 1.78 3 1/4 3 3/8 1/16
    BS043 88.62 x 1.78 3 1/2 3 5/8 1/16
    BS044 94.97 x 1.78 3 3/4 3 7/8 1/16
    BS045 101.32 x 1.78 4 4 1/8 1/16
    BS046 107.67 x 1.78 4 1/4 4 3/8 1/16
    BS047 114.02 x 1.78 4 1/2 4 5/8 1/16
    BS048 120.37 x 1.78 4 3/4 4 7/8 1/16
    BS049 126.72 x 1.78 5 5 1/8 1/16
    BS050 133.07 x 1.78 5 1/4 5 3/8 1/16
  • + -

    BS102 - BS178


    BS Number O-Ring Size (ID x Cross Section (mm)) Nominal Size (Inches)
        ID OD Cross Section
    BS102 1.25 x 2.62 1/16 1/4 3/32
    BS103 2.06 x 2.62 3/32 9/32 3/32
    BS104 2.85 x 2.62 1/8 5/16 3/32
    BS105 3.63 x 2.62 5/32 11/32 3/32
    BS106 4.42 x 2.62 3/16 3/8 3/32
    BS107 5.23 x 2.62 7/32 13/32 3/32
    BS108 6.02 x 2.62 1/4 7/16 3/32
    BS109 7.60 x 2.62 5/16 1/2 3/32
    BS110 9.20 x 2.62 3/8 9/16 3/32
    BS111 10.77 x 2.62 7/16 5/8 3/32
    BS112 12.37 x 2.62 1/2 11/16 3/32
    BS113 13.95 x 2.62 9/16 3/4 3/32
    BS114 15.55 x 2.62 5/8 13/16 3/32
    BS115 17.12 x 2.62 11/16 7/8 3/32
    BS116 18.72 x 2.62 3/4 15/16 3/32
    BS117 20.30 x 2.62 13/16 1 3/32
    BS118 21.90 x 2.62 7/8 1 1/16 3/32
    BS119 23.47 x 2.62 15/16 1 1/8 3/32
    BS120 25.07 x 2.62 1 1 3/16 3/32
    BS121 26.65 x 2.62 1 1/16 1 1/4 3/32
    BS122 28.25 x 2.62 1 1/8 1 5/16 3/32
    BS123 29.82 x 2.62 1 13/16 1 3/8 3/32
    BS124 31.42 x 2.62 1 1/4 1 7/16 3/32
    BS125 33 x 2.62 1 5/16 1 1/2 3/32
    BS126 34.6 x 2.62 1 3/8 1 9/16 3/32
    BS127 36.17 x 2.62 1 7/16 1 5/8 3/32
    BS128 37.77 x 2.62 1 1/2 1 11/16 3/32
    BS129 39.35 x 2.62 1 9/16 1 3/4 3/32
    BS130 40.95 x 2.62 1 5/8 1 5/8 3/32
    BS131 42.52 x 2.62 1 11/16 1 3/4 3/32
    BS132 44.12 x 2.62 1 3/4 1 15/16 3/32
    BS133 45.7 x 2.62 1 13/16 2 3/32
    BS134 47.30 x 2.62 1 7/8 2 1/16 3/32
    BS135 48.90 x 2.62 1 15/16 2 1/8 3/32
    BS136 50.47 x 2.62 2 2 3/16 3/32
    BS137 52.07 x 2.62 2 1/16 2 1/4 3/32
    BS138 53.64 x 2.62 2 1/8 2 5/16 3/32
    BS139 55.25 x 2.62 2 3/16 2 3/8 3/32
    BS140 56.82 x 2.62 2 1/4 2 7/16 3/32
    BS141 58.42 x 2.62 2 5/16 2 1/2 3/32
    BS142 59.99 x 2.62 2 3/8 2 9/16 3/32
    BS143 61.60 x 2.62 2 7/16 2 5/8 3/32
    BS144 63.17 x 2.62 2 1/2 2 11/16 3/32
    BS145 64.77 x 2.62 2 9/16 2 3/4 3/32
    BS146 66.34 x 2.62 2 5/8 2 13/16 3/32
    BS147 67.95 x 2.62 2 11/16 2 7/8 3/32
    BS148 69.52 x 2.62 2 3/4 2 15/16 3/32
    BS149 71.12 x 2.62 2 13/16 3 3/32
    BS150 72.70 x 2.62 2 7/8 3 1/16 3/32
    BS151 75.87 x 2.62 3 3 3/16 3/32
    BS152 82.22 x 2.62 3 1/4 3 7/16 3/32
    BS153 88.57 x 2.62 3 1/2 3 11/16 3/32
    BS154 94.92 x 2.62 3 3/4 3 15/16 3/32
    BS155 101.27 x 2.62 4 4 3/16 3/32
    BS156 107.62 x 2.62 4 1/4 4 7/16 3/32
    BS157 113.97 x 2.62 4 1/2 4 11/16 3/32
    BS158 120.32 x 2.62 4 3/4 4 15/16 3/32
    BS159 126.67 x 2.62 5 5 3/16 3/32
    BS160 133.02 x 2.62 5 1/4 5 7/16 3/32
    BS161 139.37 x 2.62 5 1/2 5 11/16 3/32
    BS162 145.72 x 2.62 5 3/4 5 15/16 3/32
    BS163 152.07 x 2.62 6 6 3/16 3/32
    BS164 158.42 x 2.62 6 1/4 6 7/16 3/32
    BS165 164.77 x 2.62 6 1/2 6 11/16 3/32
    BS166 171.12 x 2.62 6 3/4 6 15/16 3/32
    BS167 177.47 x 2.62 7 7 3/16 3/32
    BS168 183.82 x 2.62 7 1/4 7 7/16 3/32
    BS169 190.17 x 2.62 7 1/2 7 11/16 3/32
    BS170 196.52 x 2.62 7 3/4 7 15/16 3/32
    BS171 202.87 x 2.62 8 8 3/16 3/32
    BS172 209.22 x 2.62 8 1/4 8 7/16 3/32
    BS173 215.57 x 2.62 8 1/2 8 11/16 3/32
    BS174 221.92 x 2.62 8 3/4 8 15/16 3/32
    BS175 228.27 x 2.62 9 9 3/16 3/32
    BS176 234.62 x 2.62 9 1/4 9 7/16 3/32
    BS177 240.97 x 2.62 9 1/2 9 11/16 3/32
    BS178 247.32 x 2.62 9 3/4 9 15/16 3/32
  • + -

    BS201 - BS284


    BS Number O-Ring Size (ID x Cross Section (mm)) Nominal Size (Inches)
        ID OD Cross Section
    BS201 4.34 x 3.53 3/16 7/16 1/8
    BS202 5.94 x 3.53 1/4 1/2 1/8
    BS203 7.52 x 3.53 5/16 9/16 1/8
    BS204 9.12 x 3.53 3/8 5/8 1/8
    BS205 10.69 x 3.53 7/16 11/16 1/8
    BS206 12.29 x 3.53 1/2 3/4 1/8
    BS207 13.87 x 3.53 9/16 13/16 1/8
    BS208 15.47 x 3.53 5/8 7/8 1/8
    BS209 17.04 x 3.53 11/16 15/16 1/8
    BS210 18.64 x 3.53 3/4 1 1/8
    BS211 20.22 x 3.53 13/16 1 1/16 1/8
    BS212 21.82 x 3.53 7/8 1 1/8 1/8
    BS213 23.39 x 3.53 15/16 1 3/16 1/8
    BS214 24.99 x 3.53 1 1 1/4 1/8
    BS215 26.57 x 3.53 1 1/16 1 5/16 1/8
    BS216 28.17 x 3.53 1 1/8 1 3/8 1/8
    BS217 29.74 x 3.53 1 13/16 1 7/16 1/8
    BS218 31.34 x 3.53 1 1/4 1 1/2 1/8
    BS219 32.92 x 3.53 1 5/16 1 9/16 1/8
    BS220 34.52 x 3.53 1 3/8 1 5/8 1/8
    BS221 36.09 x 3.53 1 7/16 1 11/16 1/8
    BS222 37.69 x 3.53 1 1/2 1 3/4 1/8
    BS223 40.87 x 3.53 1 5/8 1 7/8 1/8
    BS224 44.09 x 3.53 1 3/4 2 1/8
    BS225 47.22 x 3.53 1 7/8 2 1/8 1/8
    BS226 50.39 x 3.53 2 2 1/4 1/8
    BS227 53.57 x 3.53 2 1/8 2 3/8 1/8
    BS228 56.75 x 3.53 2 1/4 2 1/2 1/8
    BS229 59.92 x 3.53 2 3/8 2 5/8 1/8
    BS230 63.09 x 3.53 2 1/2 2 3/4 1/8
    BS231 66.27 x 3.53 2 5/8 2 7/8 1/8
    BS232 69.44 x 3.53 2 3/4 3 1/8
    BS233 72.62 x 3.53 2 7/8 3 1/8 1/8
    BS234 75.80 x 3.53 3 3 1/4 1/8
    BS235 78.97 x 3.53 3 1/8 3 3/8 1/8
    BS236 82.14 x 3.53 3 1/4 3 1/2 1/8
    BS237 85.32 x 3.53 3 3/8 3 5/8 1/8
    BS238 88.49 x 3.53 3 1/2 3 3/4 1/8
    BS239 91.67 x 3.53 3 5/8 3 7/8 1/8
    BS240 94.84 x 3.53 3 3/4 4 1/8
    BS241 98.02 x 3.53 3 7/8 4 1/8 1/8
    BS242 101.20 x 3.53 4 4 1/4 1/8
    BS243 104.37 x 3.53 4 1/8 4 3/8 1/8
    BS244 107.54 x 3.53 4 1/4 4 1/2 1/8
    BS245 110.72 x 3.53 4 3/8 4 5/8 1/8
    BS246 113.89 x 3.53 4 1/2 4 3/4 1/8
    BS247 117.07 x 3.53 4 5/8 4 7/8 1/8
    BS248 120.24 x 3.53 4 3/4 5 1/8
    BS249 123.42 x 3.53 4 7/8 5 1/8 1/8
    BS250 126.60 x 3.53 5 5 1/4 1/8
    BS251 129.77 x 3.53 5 1/8 5 3/8 1/8
    BS252 132.95 x 3.53 5 1/4 5 1/2 1/8
    BS253 136.12 x 3.53 5 3/8 5 5/8 1/8
    BS254 139.30 x 3.53 5 1/2 5 3/4 1/8
    BS255 142.47 x 3.53 5 5/8 5 7/8 1/8
    BS256 145.64 x 3.53 5 3/4 6 1/8
    BS257 148.82 x 3.53 5 7/8 6 1/8 1/8
    BS258 152 x 3.53 6 6 1/4 1/8
    BS259 158.34 x 3.53 6 1/4 6 1/2 1/8
    BS260 164.70 x 3.53 6 1/2 6 3/4 1/8
    BS261 171.04 x 3.53 4 3/4 7 1/8
    BS262 177.40 x 3.53 7 7 1/4 1/8
    BS263 183.74 x 3.53 7 1/4 7 1/2 1/8
    BS264 190.10 x 3.53 7 1/2 7 3/4 1/8
    BS265 196.44 x 3.53 7 3/4 8 1/8
    BS266 202.80 x 3.53 8 7 1/4 1/8
    BS267 209.14 x 3.53 8 1/4 7 1/2 1/8
    BS268 215.50 x 3.53 8 1/2 7 3/4 1/8
    BS269 221.84 x 3.53 8 3/4 9 1/8
    BS270 228.20 x 3.53 9 7 1/4 1/8
    BS271 234.55 x 3.53 9 1/4 7 1/2 1/8
    BS272 240.90 x 3.53 9 1/2 7 3/4 1/8
    BS273 247.25 x 3.53 9 3/4 10 1/8
    BS274 253.60 x 3.53 10 10 1/4 1/8
    BS275 266.29 x 3.53 10 1/2 10 3/4 1/8
    BS276 278.99 x 3.53 11 11 1/4 1/8
    BS277 291.69 x 3.53 11 1/2 11 3/4 1/8
    BS278 304.39 x 3.53 12 12 1/4 1/8
    BS279 329.79 x 3.53 13 13 1/4 1/8
    BS280 355.19 x 3.53 14 14 1/4 1/8
    BS281 380.59 x 3.53 15 15 1/4 1/8
    BS282 405.26 x 3.53 16 16 1/4 1/8
    BS283 430.66 x 3.53 17 17 1/4 1/8
    BS284 456.06 x 3.53 18 18 1/4 1/8
  • + -

    BS309 - BS395


    BS Number O-Ring Size (ID x Cross Section (mm)) Nominal Size (Inches)
        ID OD Cross Section
    BS309 10.47 x 5.33 7/16 13/16 3/16
    BS310 12.07 x 5.33 1/2 7/8 3/16
    BS311 13.64 x 5.33 9/16 15/16 3/16
    BS312 15.24 x 5.33 5/8 1 3/16
    BS313 16.81 x 5.33 11/16 1 1/16 3/16
    BS314 18.42 x 5.33 3/4 1 1/8 3/16
    BS315 19.99 x 5.33 13/16 1 3/16 3/16
    BS316 21.59 x 5.33 7/8 1 1/4 3/16
    BS317 23.16 x 5.33 15/16 1 5/16 3/16
    BS318 24.77 x 5.33 1 1 3/8 3/16
    BS319 26.34 x 5.33 1 1/16 1 7/16 3/16
    BS320 27.94 x 5.33 1 1/8 1 1/2 3/16
    BS321 29.51 x 5.33 1 3/16 1 9/16 3/16
    BS322 31.12 x 5.33 1 1/4 1 5/8 3/16
    BS323 32.69 x 5.33 1 5/16 1 11/16 3/16
    BS324 34.29 x 5.33 1 3/8 1 3/4 3/16
    BS325 37.47 x 5.33 1 1/2 1 7/8 3/16
    BS326 40.64 x 5.33 1 5/8 2 3/16
    BS327 43.82 x 5.33 1 3/4 2 1/8 3/16
    BS328 46.99 x 5.33 1 7/8 2 1/4 3/16
    BS329 50.17 x 5.33 2 2 3/8 3/16
    BS330 53.34 x 5.33 2 1/8 2 1/2 3/16
    BS331 56.52 x 5.33 2 1/4 2 5/8 3/16
    BS332 59.69 x 5.33 2 3/8 2 3/4 3/16
    BS333 62.87 x 5.33 2 1/2 2 7/8 3/16
    BS334 66.64 x 5.33 2 5/8 3 3/16
    BS335 69.22 x 5.33 2 3/4 3 1/8 3/16
    BS336 72.39 x 5.33 2 7/8 3 1/4 3/16
    BS337 75.57 x 5.33 3 3 3/8 3/16
    BS338 78.74 x 5.33 3 1/8 3 1/2 3/16
    BS339 81.92 x 5.33 3 1/4 3 5/8 3/16
    BS340 85.09 x 5.33 3 3/8 3 3/4 3/16
    BS341 88.27 x 5.33 3 1/2 3 7/8 3/16
    BS342 91.44 x 5.33 3 5/8 4 3/16
    BS343 94.62 x 5.33 3 3/4 4 1/8 3/16
    BS344 97.79 x 5.33 3 7/8 4 1/4 3/16
    BS345 100.97 x 5.33 4 4 3/8 3/16
    BS346 104.14 x 5.33 4 1/8 4 1/2 3/16
    BS347 107.32 x 5.33 4 1/4 4 5/8 3/16
    BS348 110.49 x 5.33 4 3/8 4 3/4 3/16
    BS349 113.67 x 5.33 4 1/2 4 7/8 3/16
    BS350 116.84 x 5.33 4 5/8 5 3/16
    BS351 120.02 x 5.33 4 3/4 5 1/8 3/16
    BS352 123.19 x 5.33 4 7/8 5 1/4 3/16
    BS353 126.37 x 5.33 5 5 3/8 3/16
    BS354 129.54 x 5.33 5 1/8 5 1/2 3/16
    BS355 132.72 x 5.33 5 1/4 5 5/8 3/16
    BS356 135.89 x 5.33 5 3/8 5 3/4 3/16
    BS357 139.07 x 5.33 5 1/2 5 7/8 3/16
    BS358 142.24 x 5.33 5 5/8 6 3/16
    BS359 145.42 x 5.33 5 3/4 6 1/8 3/16
    BS360 148.59 x 5.33 5 7/8 6 1/4 3/16
    BS361 151.77 x 5.33 6 6 3/8 3/16
    BS362 158.12 x 5.33 6 1/4 6 5/8 3/16
    BS363 164.47 x 5.33 6 1/2 6 7/8 3/16
    BS364 170.82 x 5.33 4 3/4 7 1/8 3/16
    BS365 177.17 x 5.33 7 7 3/8 3/16
    BS366 183.52 x 5.33 7 1/4 7 5/8 3/16
    BS367 189.87 x 5.33 7 1/2 7 7/8 3/16
    BS368 196.22 x 5.33 7 3/4 8 1/8 3/16
    BS369 202.57 x 5.33 8 8 3/8 3/16
    BS370 208.92 x 5.33 8 1/4 8 5/8 3/16
    BS371 215.27 x 5.33 8 1/2 8 7/8 3/16
    BS372 221.62 x 5.33 8 3/4 9 1/8 3/16
    BS373 227.97 x 5.33 9 9 3/8 3/16
    BS374 234.22 x 5.33 9 1/4 9 5/8 3/16
    BS375 240.67 x 5.33 9 1/2 9 7/8 3/16
    BS376 247.02 x 5.33 9 3/4 10 1/8 3/16
    BS377 253.37 x 5.33 10 10 3/8 3/16
    BS378 266.07 x 5.33 10 1/2 10 7/8 3/16
    BS379 278.77 x 5.33 11 11 3/8 3/16
    BS380 291.47 x 5.33 11 1/2 11 7/8 3/16
    BS381 304.17 x 5.33 12 12 3/8 3/16
    BS382 329.57 x 5.33 13 13 3/8 3/16
    BS383 354.97 x 5.33 14 14 3/8 3/16
    BS384 380.37 x 5.33 15 15 3/8 3/16
    BS385 405.26 x 5.33 16 16 3/8 3/16
    BS386 430.66 x 5.33 17 17 3/8 3/16
    BS387 456.06 x 5.33 18 18 3/8 3/16
    BS388 481.38 x 5.33 19 19 3/8 3/16
    BS389 506.78 x 5.33 20 20 3/8 3/16
    BS390 532.18 x 5.33 21 21 3/8 3/16
    BS391 557.58 x 5.33 22 22 3/8 3/16
    BS392 582.68 x 5.33 23 23 3/8 3/16
    BS393 608.08 x 5.33 24 24 3/8 3/16
    BS394 633.48 x 5.33 25 25 3/8 3/16
    BS395 658.88 x 5.33 26 26 3/8 3/16
  • + -

    BS425 - BS475


    BS Number O-Ring Size (ID x Cross Section (mm)) Nominal Size (Inches)
        ID OD Cross Section
    BS425 113.67 x 7 4 1/2 5 1/4
    BS426 116.84 x 7 4 5/8 5 1/8 1/4
    BS427 120.02 x 7 4 3/4 5 1/4 1/4
    BS428 123.19 x 7 4 7/8 5 3/8 1/4
    BS429 126.37 x 7 5 5 1/2 1/4
    BS430 126.54 x 7 5 1/8 5 5/8 1/4
    BS431 132.72 x 7 5 1/4 5 3/4 1/4
    BS432 135.89 x 7 5 3/8 5 7/8 1/4
    BS433 139.07 x 7 5 1/2 6 1/4
    BS434 142.24 x 7 5 5/8 6 1/8 1/4
    BS435 145.42 x 7 5 3/4 6 1/4 1/4
    BS436 148.59 x 7 5 7/8 6 3/8 1/4
    BS437 151.77 x 7 6 6 1/2 1/4
    BS438 158.12 x 7 6 1/4 6 3/4 1/4
    BS439 164.47 x 7 6 1/2 7 1/4
    BS440 170.82 x 7 4 3/4 7 1/4 1/4
    BS441 177.17 x 7 7 7 1/2 1/4
    BS442 183.52 x 7 7 1/4 7 3/4 1/4
    BS443 189.87 x 7 7 1/2 8 1/4
    BS444 196.22 x 7 7 3/4 8 1/4 1/4
    BS445 202.57 x 7 8 8 1/2 1/4
    BS446 215.27 x 7 8 1/2 9 1/4
    BS447 227.97 x 7 9 9 1/2 1/4
    BS448 240.67 x 7 9 1/2 10 1/4
    BS449 253.37 x 7 10 10 1/2 1/4
    BS450 266.07 x 7 10 1/2 11 1/4
    BS451 278.77 x 7 11 11 1/2 1/4
    BS452 291.47 x 7 11 1/2 12 1/4
    BS453 304.17 x 7 12 12 1/2 1/4
    BS454 316.87 x 7 12 1/2 13 1/4
    BS455 329.57 x 7 13 13 1/2 1/4
    BS456 342.27 x 7 13 1/2 14 1/4
    BS457 354.97 x 7 14 14 1/2 1/4
    BS458 367.67 x 7 14 1/2 15 1/4
    BS459 380.37 x 7 15 15 1/2 1/4
    BS460 393.07 x 7 15 1/2 16 1/4
    BS461 405.26 x 7 16 16 1.2 1/4
    BS462 417.96 x 7 6 1/2 17 1/4
    BS463 430.66 x 7 17 17 1/2 1/4
    BS464 443.36 x 7 17 1/2 18 1/4
    BS465 456.06 x 7 18 18 1/2 1/4
    BS466 468.76 x 7 18 1/2 19 1/4
    BS467 481.46 x 7 19 19 1/2 1/4
    BS468 494.16 x 7 19 1/2 20 1/4
    BS469 506.86 x 7 20 20 1/2 1/4
    BS470 532.26 x 7 21 21 1/2 1/4
    BS471 557.66 x 7 22 22 1/2 1/4
    BS472 582.68 x 7 23 23 1/2 1/4
    BS473 608.08 x 7 24 24 1/2 1/4
    BS474 633.48 x 7 25 25 1/2 1/4
    BS475 658.88 x 7 27 27 1/2 1/4
  • + -

    BS901 - BS932


    BS Number O-Ring Size (ID x Cross Section (mm))
    BS901 4.7 x 1.42
    BS902 6.02 x 1.63
    BS903 7.65 x 1.63
    BS904 8.92 x 1.83
    BS905 10.72 x 1.83
    BS906 11.90 x 1.98
    BS907 13.46 x 2.08
    BS908 16.36 x 2.21
    BS909 17.93 x 2.46
    BS910 19.18 x 2.46
    BS911 21.92 x 2.95
    BS912 23.47 x 2.95
    BS913 25.04 x 2.95
    BS914 26.61 x 2.95
    BS916 29.74 x 2.95
    BS918 34.42 x 2.95
    BS920 37.47 x 3
    BS924 43.69 x 3
    BS928 53.09 x 3
    BS932 59.36 x 3

Every effort has been made to ensure the accuracy of the information supplied above. We cannot accept responsibility for any errors or omissions on the buyer's behalf. Please ask a member of the SEP technical team for more information / clarification if required.

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