3/32" Wall G7 Tubes

G7 Phenolic Tubes 3/32" Wall

G7 Glass-Cloth-Reinforced Silicone naturally has a cream to white color. Composed of a continuous glass woven cloth base impregnated with a silicone resin binder, this grade has excellent heat and arc resistance. Silicone is used for high temperature electronic applications demanding low electrical losses. Silicone isn't as strong as epoxies and phenolics upon aging at lower temperatures but is stronger upon aging over 400°F. G7 has excellent dielectric loss properties under dry conditions, and decent electrical properties under humid conditions albeit a high percentage of change.

NEMA G-7 certs to MIL-I-24768/17 GSG, IEC 60893-3 Type 6 SI GC 201

Tolerances  •  Technical Data  •  Chemical Resistance  •  Other Wall Sizes

Tubes are manufactured in random lengths between 30" and 36".
The pricing and minimum orders are based on the 36".

Tubes can also be produced in 42" to 48" random lengths for the same price per foot.
Measured lengths of 36"±1" and 48"±1" are also available (call for pricing)

G7 Tubes - .093" Wall Thickness
Part # OD (in.) ID (in.) Minimum Order Price Per Foot Order Online
KM-1758 .375 .187 27 Feet $41.57 Add to Order
KM-1761 .438 .250 24 Feet $44.85 Add to Order
KM-1764 .500 .312 21 Feet $48.13 Add to Order
KM-1767 .563 .375 27 Feet $39.65 Add to Order
KM-1770 .625 .437 24 Feet $42.18 Add to Order
KM-1773 .688 .500 24 Feet $44.70 Add to Order
KM-11682 .750 .563 24 Feet $47.23 Add to Order
KM-1782 .813 .625 21 Feet $49.75 Add to Order
KM-13305 .875 .688 21 Feet $52.28 Add to Order
KM-13328 .938 .750 21 Feet $54.80 Add to Order
KM-13346 1.000 .813 18 Feet $57.33 Add to Order
KM-1794 1.063 .875 18 Feet $59.85 Add to Order
KM-13363 1.125 .938 18 Feet $62.38 Add to Order
KM-1799 1.187 1.000 18 Feet $64.90 Add to Order
KM-13341 1.250 1.063 15 Feet $67.40 Add to Order
KM-13342 1.313 1.125 15 Feet $69.95 Add to Order
KM-13343 1.375 1.188 15 Feet $72.45 Add to Order
KM-13344 1.438 1.250 15 Feet $75.00 Add to Order
KM-13345 1.500 1.313 15 Feet $77.53 Add to Order
KM-13355 1.562 1.375 15 Feet $80.05 Add to Order
KM-13347 1.625 1.438 15 Feet $82.58 Add to Order
KM-13339 1.688 1.500 12 Feet $85.10 Add to Order
KM-13349 1.750 1.563 12 Feet $87.63 Add to Order
KM-13350 1.813 1.625 12 Feet $90.18 Add to Order
KM-13351 1.875 1.688 12 Feet $92.68 Add to Order
KM-13352 1.938 1.750 12 Feet $95.23 Add to Order
KM-13353 2.000 1.813 12 Feet $97.73 Add to Order
KM-13354 2.063 1.875 12 Feet $100.28 Add to Order
KM-13380 2.125 1.938 12 Feet $102.78 Add to Order
KM-13406 2.188 2.000 12 Feet $105.33 Add to Order
KM-13365 2.250 2.063 12 Feet $107.83 Add to Order
KM-13392 2.313 2.125 12 Feet $110.38 Add to Order
KM-13393 2.375 2.188 9 Feet $112.88 Add to Order
KM-13394 2.438 2.250 9 Feet $115.43 Add to Order
KM-13395 2.500 2.313 9 Feet $117.93 Add to Order
KM-13396 2.563 2.375 9 Feet $120.48 Add to Order
KM-13407 2.625 2.438 9 Feet $122.98 Add to Order
KM-13398 2.688 2.500 9 Feet $125.53 Add to Order
KM-13390 2.750 2.563 9 Feet $128.03 Add to Order
KM-13400 2.813 2.625 9 Feet $130.58 Add to Order
KM-13401 2.875 2.688 9 Feet $133.08 Add to Order
KM-13402 2.938 2.750 9 Feet $135.63 Add to Order
KM-13403 3.000 2.813 9 Feet $138.15 Add to Order
KM-13404 3.063 2.875 9 Feet $140.68 Add to Order
KM-13405 3.125 2.938 9 Feet $143.20 Add to Order
KM-13382 3.188 3.000 9 Feet $145.73 Add to Order
KM-13399 3.250 3.063 9 Feet $148.25 Add to Order
KM-13397 3.313 3.125 9 Feet $150.80 Add to Order
KM-13374 3.375 3.188 9 Feet $153.30 Add to Order
KM-13375 3.438 3.250 9 Feet $155.85 Add to Order
KM-13376 3.500 3.313 9 Feet $158.35 Add to Order
KM-13377 3.563 3.375 9 Feet $160.90 Add to Order
KM-13378 3.625 3.438 9 Feet $163.40 Add to Order
KM-13379 3.688 3.500 9 Feet $165.95 Add to Order
KM-13389 3.750 3.563 6 Feet $168.45 Add to Order
KM-13381 3.813 3.625 6 Feet $171.00 Add to Order
KM-13373 3.875 3.688 6 Feet $173.50 Add to Order
KM-13383 3.938 3.750 6 Feet $176.05 Add to Order
KM-13384 4.000 3.813 6 Feet $178.55 Add to Order
KM-13385 4.063 3.875 6 Feet $181.10 Add to Order
KM-13386 4.125 3.938 6 Feet $183.60 Add to Order
KM-13387 4.188 4.000 6 Feet $186.15 Add to Order
KM-13388 4.250 4.063 6 Feet $188.65 Add to Order
KM-13322 4.313 4.125 6 Feet $191.20 Add to Order
KM-13271 4.375 4.188 6 Feet $193.70 Add to Order
KM-13340 4.438 4.250 6 Feet $196.25 Add to Order
KM-13289 4.500 4.313 6 Feet $198.78 Add to Order
KM-13290 4.563 4.375 6 Feet $201.30 Add to Order
KM-13291 4.625 4.438 6 Feet $203.83 Add to Order
KM-13292 4.688 4.500 6 Feet $206.35 Add to Order
KM-13293 4.750 4.563 6 Feet $208.88 Add to Order
KM-13303 4.813 4.625 6 Feet $211.42 Add to Order
KM-13295 4.875 4.688 6 Feet $213.92 Add to Order
KM-13287 4.938 4.750 6 Feet $216.48 Add to Order
KM-13297 5.000 4.813 6 Feet $218.98 Add to Order
KM-13476 5.063 4.875 6 Feet $247.27 Add to Order
KM-13298 5.125 4.938 6 Feet $250.08 Add to Order
KM-13391 5.188 5.000 6 Feet $252.90 Add to Order
KM-13300 5.250 5.063 6 Feet $255.70 Add to Order
KM-13301 5.313 5.125 6 Feet $258.55 Add to Order
KM-13302 5.375 5.188 6 Feet $261.35 Add to Order
KM-13279 5.437 5.250 6 Feet $264.18 Add to Order
KM-13277 5.500 5.313 6 Feet $266.98 Add to Order
KM-13294 5.563 5.375 6 Feet $269.83 Add to Order
KM-13272 5.625 5.438 6 Feet $272.63 Add to Order
KM-13273 5.688 5.500 6 Feet $275.48 Add to Order
KM-13274 5.750 5.563 6 Feet $278.25 Add to Order
KM-13275 5.813 5.625 6 Feet $281.10 Add to Order
KM-13276 5.875 5.688 6 Feet $283.90 Add to Order
KM-13286 5.938 5.750 6 Feet $286.75 Add to Order
KM-13278 6.000 5.813 6 Feet $289.55 Add to Order
KM-13270 6.063 5.875 6 Feet $292.38 Add to Order
KM-13280 6.125 5.938 6 Feet $295.17 Add to Order
KM-13281 6.188 6.000 6 Feet $298.03 Add to Order
KM-13282 6.250 6.063 6 Feet $266.65 Add to Order
KM-13283 6.313 6.125 6 Feet $269.38 Add to Order
KM-13284 6.375 6.188 6 Feet $272.08 Add to Order
KM-13285 6.438 6.250 6 Feet $274.80 Add to Order
KM-13311 6.500 6.313 6 Feet $277.47 Add to Order
KM-13337 6.563 6.375 6 Feet $280.20 Add to Order
KM-13296 6.625 6.438 6 Feet $282.90 Add to Order
KM-13323 6.688 6.500 6 Feet $285.63 Add to Order
KM-13324 6.750 6.563 6 Feet $288.30 Add to Order
KM-13325 6.813 6.625 6 Feet $291.05 Add to Order
KM-13326 6.875 6.688 6 Feet $293.72 Add to Order
KM-13327 6.938 6.750 6 Feet $296.45 Add to Order
KM-13338 7.000 6.813 6 Feet $299.15 Add to Order
KM-13329 7.063 6.875 6 Feet $301.88 Add to Order
KM-13321 7.125 6.938 6 Feet $304.55 Add to Order
KM-13331 7.188 7.000 6 Feet $307.28 Add to Order
KM-13332 7.250 7.063 6 Feet $309.97 Add to Order
KM-13333 7.313 7.125 6 Feet $312.70 Add to Order
KM-13334 7.375 7.188 6 Feet $315.38 Add to Order
KM-13335 7.438 7.250 6 Feet $318.13 Add to Order
KM-13336 7.500 7.313 6 Feet $320.80 Add to Order
KM-13313 7.563 7.375 6 Feet $323.53 Add to Order
KM-13330 7.625 7.438 6 Feet $326.23 Add to Order
KM-13483 7.688 7.500 6 Feet $328.95 Add to Order
KM-13484 7.750 7.563 6 Feet $331.63 Add to Order
KM-13494 7.813 7.625 3 Feet $334.35 Add to Order
KM-13486 7.875 7.688 3 Feet $337.05 Add to Order
KM-13478 7.938 7.750 3 Feet $339.78 Add to Order
KM-13488 8.000 7.813 3 Feet $342.45 Add to Order
KM-13489 8.063 7.875 3 Feet $345.17 Add to Order
KM-13490 8.125 7.938 3 Feet $347.88 Add to Order
KM-13491 8.188 8.000 3 Feet $350.60 Add to Order
KM-13493 8.313 8.125 3 Feet $356.03 Add to Order
KM-13470 8.375 8.188 3 Feet $358.70 Add to Order
KM-13468 8.438 8.250 3 Feet $361.42 Add to Order
KM-13477 8.500 8.313 3 Feet $364.13 Add to Order
KM-13469 8.563 8.375 3 Feet $366.85 Add to Order
KM-13461 8.625 8.438 3 Feet $369.53 Add to Order
KM-13471 8.688 8.500 3 Feet $372.25 Add to Order
KM-13472 8.750 8.563 3 Feet $374.95 Add to Order
KM-13473 8.813 8.625 3 Feet $377.67 Add to Order
KM-13527 8.875 8.688 3 Feet $380.35 Add to Order
KM-13504 8.938 8.750 3 Feet $383.10 Add to Order
KM-13502 9.000 8.813 3 Feet $385.78 Add to Order
KM-13519 9.063 8.875 3 Feet $388.50 Add to Order
KM-13510 9.125 8.938 3 Feet $391.20 Add to Order
KM-13509 9.188 9.000 3 Feet $393.92 Add to Order
KM-13508 9.250 9.063 3 Feet $396.60 Add to Order
KM-13507 9.313 9.125 3 Feet $399.33 Add to Order
KM-13506 9.375 9.188 3 Feet $402.03 Add to Order
KM-13505 9.438 9.250 3 Feet $404.75 Add to Order
KM-13495 9.500 9.313 3 Feet $407.43 Add to Order
KM-13503 9.563 9.375 3 Feet $410.17 Add to Order
KM-13511 9.625 9.438 3 Feet $412.85 Add to Order
KM-13501 9.688 9.500 3 Feet $415.58 Add to Order
KM-13500 9.750 9.563 3 Feet $418.28 Add to Order
KM-13499 9.813 9.625 3 Feet $421.00 Add to Order
KM-13498 9.875 9.688 3 Feet $423.68 Add to Order
KM-13497 9.938 9.750 3 Feet $426.40 Add to Order
KM-13426 10.000 9.813 3 Feet $429.10 Add to Order
KM-13438 10.063 9.875 3 Feet $431.83 Add to Order
KM-13439 10.125 9.938 3 Feet $434.50 Add to Order
KM-13440 10.188 10.000 3 Feet $437.22 Add to Order
KM-13441 10.250 10.063 3 Feet $439.93 Add to Order
KM-13442 10.313 10.125 3 Feet $442.65 Add to Order
KM-13417 10.375 10.188 3 Feet $445.33 Add to Order
KM-13415 10.438 10.250 3 Feet $448.08 Add to Order
KM-13433 10.500 10.313 3 Feet $450.75 Add to Order
KM-13445 10.563 10.375 3 Feet $453.47 Add to Order
KM-13409 10.625 10.438 3 Feet $456.18 Add to Order
KM-13435 10.688 10.500 3 Feet $458.90 Add to Order
KM-13446 10.750 10.563 3 Feet $461.58 Add to Order
KM-13447 10.813 10.625 3 Feet $464.30 Add to Order
KM-13448 10.875 10.688 3 Feet $467.00 Add to Order
KM-13449 10.938 10.750 3 Feet $469.72 Add to Order
KM-13450 11.000 10.813 3 Feet $472.40 Add to Order
KM-13479 11.063 10.875 3 Feet $475.15 Add to Order
KM-13452 11.125 10.938 3 Feet $477.83 Add to Order
KM-13444 11.188 11.000 3 Feet $480.55 Add to Order
KM-13454 11.250 11.063 3 Feet $483.25 Add to Order
KM-13455 11.313 11.125 3 Feet $485.97 Add to Order
KM-13456 11.375 11.188 3 Feet $488.65 Add to Order
KM-13457 11.437 11.250 3 Feet $491.38 Add to Order
KM-13458 11.500 11.313 3 Feet $494.08 Add to Order
KM-13459 11.563 11.375 3 Feet $496.80 Add to Order
KM-13460 11.625 11.438 3 Feet $499.47 Add to Order
KM-13453 11.688 11.500 3 Feet $502.22 Add to Order
KM-13480 11.750 11.563 3 Feet $504.90 Add to Order
KM-13481 11.813 11.625 3 Feet $507.63 Add to Order
KM-13482 11.875 11.688 3 Feet $510.33 Add to Order
KM-13485 11.938 11.750 3 Feet $513.05 Add to Order
KM-13463 12.000 11.813 3 Feet $515.73 Add to Order
KM-13521 12.063 11.875 3 Feet $518.45 Add to Order
KM-13464 12.125 11.938 3 Feet $521.15 Add to Order
KM-13529 12.188 12.000 3 Feet $523.88 Add to Order
KM-13465 12.250 12.063 3 Feet $526.55 Add to Order
KM-13466 12.313 12.125 3 Feet $529.28 Add to Order
KM-13467 12.375 12.188 3 Feet $531.98 Add to Order
KM-13474 12.438 12.250 3 Feet $534.70 Add to Order
KM-13475 12.500 12.312 3 Feet $537.38 Add to Order
KM-13496 12.563 12.375 3 Feet $540.13 Add to Order
KM-13462 12.625 12.438 3 Feet $542.80 Add to Order
KM-13487 12.688 12.500 3 Feet $545.53 Add to Order
KM-13423 12.750 12.563 3 Feet $548.23 Add to Order
KM-13422 12.813 12.625 3 Feet $550.95 Add to Order
KM-13421 12.875 12.688 3 Feet $553.63 Add to Order
KM-13420 12.937 12.750 3 Feet $556.35 Add to Order
KM-13419 13.000 12.813 3 Feet $559.05 Add to Order
KM-13418 13.062 12.875 3 Feet $561.78 Add to Order
KM-13408 13.125 12.938 3 Feet $564.45 Add to Order
KM-13416 13.187 13.000 3 Feet $567.20 Add to Order
KM-13425 13.250 13.063 3 Feet $569.88 Add to Order
KM-13513 13.312 13.125 3 Feet $572.60 Add to Order
KM-13414 13.375 13.188 3 Feet $575.30 Add to Order
KM-13514 13.437 13.250 3 Feet $578.03 Add to Order
KM-13413 13.500 13.312 3 Feet $580.70 Add to Order
KM-13412 13.562 13.375 3 Feet $583.43 Add to Order
KM-13411 13.625 13.438 3 Feet $586.13 Add to Order
KM-13410 13.687 13.500 3 Feet $588.85 Add to Order
KM-13437 13.750 13.563 3 Feet $591.53 Add to Order
KM-13436 13.812 13.625 3 Feet $594.28 Add to Order
KM-13434 13.875 13.688 3 Feet $596.95 Add to Order
KM-13443 13.938 13.750 3 Feet $599.68 Add to Order
KM-13432 14.000 13.813 3 Feet $602.38 Add to Order
KM-13431 14.062 13.875 3 Feet $605.10 Add to Order
KM-13430 14.125 13.938 3 Feet $607.78 Add to Order
KM-13429 14.187 14.000 3 Feet $610.50 Add to Order
KM-13428 14.250 14.063 3 Feet $613.20 Add to Order
KM-13427 14.312 14.125 3 Feet $615.93 Add to Order
KM-13424 14.375 14.188 3 Feet $618.60 Add to Order
KM-13515 14.437 14.250 3 Feet $621.33 Add to Order
KM-13516 14.500 14.313 3 Feet $624.03 Add to Order
KM-13517 14.562 14.375 3 Feet $626.75 Add to Order
KM-13518 14.625 14.438 3 Feet $629.45 Add to Order
KM-13528 14.687 14.500 3 Feet $632.18 Add to Order
KM-13520 14.750 14.563 3 Feet $634.85 Add to Order
KM-13512 14.812 14.625 3 Feet $637.58 Add to Order
KM-13522 14.875 14.688 3 Feet $640.28 Add to Order
KM-13523 14.937 14.750 3 Feet $643.00 Add to Order
KM-13524 15.000 14.813 3 Feet $645.68 Add to Order
KM-13525 15.062 14.875 3 Feet $648.40 Add to Order
KM-13526 15.125 14.938 3 Feet $651.10 Add to Order
KM-13299 15.187 15.000 3 Feet $653.82 Add to Order
KM-13018 15.250 15.063 3 Feet $656.50 Add to Order
KM-13085 15.312 15.125 3 Feet $659.25 Add to Order
KM-13086 15.375 15.188 3 Feet $661.93 Add to Order
KM-13087 15.437 15.250 3 Feet $664.65 Add to Order
KM-13088 15.500 15.313 3 Feet $667.35 Add to Order
KM-13089 15.563 15.375 3 Feet $670.07 Add to Order
KM-13090 15.625 15.438 3 Feet $672.75 Add to Order
KM-13100 15.687 15.500 3 Feet $675.48 Add to Order
KM-13092 15.750 15.563 3 Feet $678.18 Add to Order
KM-13084 15.812 15.625 3 Feet $680.90 Add to Order
KM-13094 15.875 15.688 3 Feet $683.58 Add to Order
KM-13095 15.937 15.750 3 Feet $686.32 Add to Order
KM-13096 16.000 15.813 3 Feet $689.00 Add to Order
KM-13097 16.062 15.875 3 Feet $691.73 Add to Order
KM-13098 16.125 15.938 3 Feet $694.43 Add to Order
KM-13076 16.187 16.000 3 Feet $697.15 Add to Order
KM-13093 16.250 16.063 3 Feet $699.83 Add to Order
KM-13091 16.312 16.125 3 Feet $702.55 Add to Order
KM-13069 16.375 16.188 3 Feet $705.25 Add to Order
KM-13070 16.437 16.250 3 Feet $707.98 Add to Order
KM-13071 16.500 16.313 3 Feet $710.65 Add to Order
KM-13072 16.562 16.375 3 Feet $713.38 Add to Order
KM-13073 16.625 16.438 3 Feet $716.08 Add to Order
KM-13083 16.687 16.500 3 Feet $718.80 Add to Order
KM-13075 16.750 16.563 3 Feet $721.50 Add to Order
KM-13068 16.812 16.625 3 Feet $724.23 Add to Order
KM-13077 16.875 16.688 3 Feet $726.90 Add to Order
KM-13078 16.937 16.750 3 Feet $729.63 Add to Order
KM-13079 17.000 16.813 3 Feet $732.33 Add to Order
KM-13080 17.062 16.875 3 Feet $735.05 Add to Order
KM-13081 17.125 16.938 3 Feet $737.72 Add to Order
KM-13082 17.187 17.000 3 Feet $740.45 Add to Order
KM-13102 17.250 17.063 3 Feet $743.15 Add to Order
KM-13127 17.312 17.125 3 Feet $745.88 Add to Order
KM-13099 17.375 17.188 3 Feet $748.55 Add to Order
KM-13120 17.437 17.250 3 Feet $751.30 Add to Order
KM-13121 17.500 17.313 3 Feet $753.97 Add to Order
KM-13122 17.562 17.375 3 Feet $756.70 Add to Order
KM-13123 17.625 17.438 3 Feet $759.40 Add to Order
KM-13124 17.687 17.500 3 Feet $762.13 Add to Order
KM-13134 17.750 17.563 3 Feet $764.80 Add to Order
KM-13126 17.812 17.625 3 Feet $767.53 Add to Order
KM-13118 17.875 17.688 3 Feet $770.22 Add to Order
KM-13128 17.937 17.750 3 Feet $772.95 Add to Order
KM-13129 18.000 17.813 3 Feet $775.63 Add to Order
KM-13130 18.062 17.875 3 Feet $778.38 Add to Order
KM-13131 18.125 17.938 3 Feet $781.05 Add to Order
KM-13132 18.187 18.000 3 Feet $783.78 Add to Order
KM-13133 18.250 18.063 3 Feet $786.47 Add to Order
KM-13110 18.312 18.125 3 Feet $789.20 Add to Order
KM-13108 18.375 18.188 3 Feet $791.88 Add to Order
KM-13125 18.437 18.250 3 Feet $794.60 Add to Order
KM-13103 18.500 18.313 3 Feet $797.30 Add to Order
KM-13104 18.562 18.375 3 Feet $800.03 Add to Order
KM-13105 18.625 18.438 3 Feet $802.70 Add to Order
KM-13030 18.687 18.500 3 Feet $805.45 Add to Order
KM-13101 18.750 18.562 3 Feet $808.13 Add to Order
KM-13106 18.812 18.625 3 Feet $810.85 Add to Order
KM-13107 18.875 18.687 3 Feet $813.55 Add to Order
KM-13117 18.937 18.750 3 Feet $816.28 Add to Order
KM-13109 19.000 18.812 3 Feet $818.95 Add to Order
KM-13024 19.062 18.875 3 Feet $821.68 Add to Order
KM-13026 19.125 18.938 3 Feet $824.38 Add to Order
KM-13029 19.250 19.062 3 Feet $829.78 Add to Order
KM-13028 19.312 19.125 3 Feet $832.50 Add to Order
KM-13027 19.375 19.187 3 Feet $835.20 Add to Order
KM-13025 19.437 19.250 3 Feet $837.93 Add to Order
KM-13033 19.500 19.312 3 Feet $840.60 Add to Order
KM-13113 19.562 19.375 3 Feet $843.35 Add to Order
KM-13111 19.625 19.437 3 Feet $846.03 Add to Order
KM-13009 19.687 19.500 3 Feet $848.75 Add to Order
KM-13112 19.750 19.562 3 Feet $851.45 Add to Order
KM-13023 19.812 19.625 3 Feet $854.18 Add to Order
KM-13114 19.875 19.687 3 Feet $856.85 Add to Order
KM-13115 19.937 19.750 3 Feet $859.57 Add to Order
KM-13116 20.000 19.812 3 Feet $862.28 Add to Order
Rev. 08-22, 04-22, 11-21, 09-21

Phenolic Tube Tolerances
3 Foot Lengths: 33" ± 3"
4 Foot Lengths: 45" ± 3"
Tighter tolerances of 36" ± 1"
and 48" ± 1" can be quoted on request.
↑ Length ↑ ↓ Inside Diameter ↓
↓ Outside Diameter ↓ Turned OD
Tolerance
Steel
Mandrel
Built-up
Mandrel
0.125"  to  0.749" ±.005" ±.003" -
0.750"  to  1.999" ±.005" ±.004" -
2.000"  to  4.000" ±.008" ±.006" -
4.001"  -  12.000" ±.025" ** ±.010" -
12.001" - 18.000" ±.030" ** ±.030" ±.060"
18.001" - 24.000" ±.035" ** ±.040" ±.075"
24.001" - 48.000" ±.040" ** ±.060" ±.090"

   ** Tubes over 8.00" OD are supplied as wound, which
  are always fractions of an inch larger than listed OD.

   ** Tubes turned to the listed OD tolerance
  can be quoted on request.

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