ISO 3601 Metric Size O-Rings - applerubber.com

1 ISO 3601 Metric Size O-Rings Quick Reference Chart Standard O-Rings How to Determine O-Ring Size*. For sequence in ordering: Every Metric ISO 3601 Size in Stock: our stock of over 300,000,000 O-Rings . 1. Size (catalog number). Listed in millimeters. Includes all Immediate shipments with no intermediate 2. Durometer and Material standard Inside Diameters from to delays. (Remember with Apple you can 3. Quantity , Outer Diameters from buy direct.). Example: to and Cross Sections (widths) How to Order: The temperatures listed are from to Constantly restocked 110 70 SLR 10,000. general operating ranges for the entire to assure immediate delivery of any size in (size) (durometer, material and color) (quantity). family of each compound. small and large quantities. These will vary with specific compounds Simplified Reference Easy to Order: All the and/or length of exposure to temperature * Shrinkage Size Adjustment: information you need at a glance.

2 All sizes extremes. For example, silicone may still be Various O-ring compounds listed by ascending inside diameter ( ) serviceable with limited exposure to 300 C. exhibit different shrinkage rates during molding. The in decimal sizes. Standard ISO 3601 We highly recommend that in all cases, normal O-ring sizes Uniform Numbering System (Order by samples of a specific size and compound herein shown are based a single number). should be tested in the application before upon a 70 Durometer Nitrile use in production. standard. For other O-ring Choice of Six Materials as Standard: materials, be sure Rubber compounds and options of to consult your Apple Apple Catalog Numbers are identical Durometer hardness to satisfy practically representative. to the ISO 3601 Numbering System, any service condition.

3 Check with our sales indicating precise and Width staff for other material needs. dimensions of O-Rings in one Fastest Delivery on O-Rings : Most likely ordering number. the size and compound you require is in Outside diameter ( ). is for reference only. O-Rings are specified by and cross section. Seal Types & Gland Design Table A O-Ring Gland Design For Dynamic Seals Squeeze Groove Width..13. O-Ring Gland Diametrical No One Two Eccen- Cross Depth mm % Clearance Backup Backup Backup Groove tricity Section Max. Rings Ring Rings Radius Max..79/.84 .10/.30 11-28 ..99 .15/.36 13-26 ..20/.41 14-25 ..25/.46 15-25 ..25/.48 10-18 ..30/.06 9-17 ..43/.81 ..074 . O-Ring Gland Design For Static Seals Squeeze Groove Width..13. Gland Depth Dia- O-Ring Radial Axial metrical No One Two Eccen- Cross Clearance Backup Backup Backup Groove tricity Section Radial Axial mm % mm % Max.

4 Rings Ring Rings Radius Max .. 19-37 . 19-37 .. 17-34 . 19-36 . 18-33 . 19-33 . 18-32 . 19-33 . 14-25 . 19-29 . 14-23 . 20-30 . 14-21 20-28 . 13-20 20-27 For Quotes, Prototypes or Questions Call: + or visit General Applications Apple O-Rings are available in a choice of six basic materials, each in a range of optional Durometer (Shore A) Hardnesses. Other materials available upon request. Buna-N/Nitrile: Buna N/Nitrile Neoprene: In the Neoprene family, All materials are compounded under 3. List ALL factors of seal rubber is a copolymer of butadiene you will find compounds which are stringent quality control for uniformity application and check material and acrylonitrile. You will find the superior sealing materials for of physical properties, and to meet performance.

5 Compounds that are ideally the refrigeration industry featuring or exceed Government, Military, A. Pressure: determines material suited for oil and fuel resistant resistance to ammonia and Freon. Space Program, Automotive, hardness and selection. applications of all types , Industrial and Commercial Fluorocarbon: In the Fluorocarbon specifications. B. Heat/Cold: check material Ethylene-Propylene: In the family, you will find compounds temperature range(s). Ethylene-Propylene family, you that make up the preferred seals To Determine Material: will find compounds that are used for aircraft engines, automotive 1. Determine end use: static C. Friction: determines material extensively for outdoor, weather fuel handling systems, and (stationary) or dynamic (moving). hardness and selection.

6 Resistant uses, water appliances. vacuum service. 2. List the substance that the seal D. Permeability: important The first choice for low torque Fluorosilicone: In the will be exposed to and check for pneumatic and drive belts. Fluorosilicone family, you will find O-Ring material resistances in vacuum applications. Silicone: In the Silicone family, compounds that make up seals that Chemical Compatibility Table(s). 4. Economy: see General Properties you will find compounds that are are unparalleled for aerospace fuel listed in the Apple Seal chart located in the Apple Seal excellent as static seals in extreme systems and auto fuel emission Design Guide. Design Guide for most temperature conditions. control systems. economical choice when several materials will do.

7 The most commonly used durometer is 70. Although other durometers are offered, availability may be limited due to processing or shrinkage factors. Apple Material Dry Heat Only Temperature Designation Durometers (Shore A). Range Materials Description Buna-N/Nitrile (NBR) BN 40 thru 90 -40 to +125 C Presently the seal industry's most widely used elastometer. Nitrile combines excellent resistance to petroleum-based oils and fuels, silicone greases, hydraulic fluids, water and alcohols, with a good balance of such desirable working properties as low compression set, high tensile strength, and high abrasion resistance. Ethylene-Propylene (EPM/EPDM) EP 40 thru 90 -40 to +135 C Featuring good resistance to such polar solvents as ketones (MEK &. Acetone). EPDM is also highly recommended for effective resistance to steam, hot water, silicone oils and greases, dilute acids and alkalies, alcohols and automotive brake fluids.

8 Properly compounded, Ethylene Propylene can provide extended temperature range of -60 C to +176 C. Silicone (MQ; PMQ; VMQ; PVMQ) SL 25 thru 80 -65 to +200 C Especially resistant to high, dry heat, in primarily static applications. Silicones are fungus resistant, odorless, tasteless, non-toxic elastomers, possessing high resistance to the aging effects of both sunlight and ozone attack. Neoprene (Chloroprene) (CR) CR 40 thru 90 -40 to +121 C An early developed, oil-resistant substitute for Natural Rubber, Neoprene features moderate resistance to petroleum oils; good resistance to ozone, sunlight and oxygen aging; relatively low compression set; good resilience;. reasonable cost; and high resistance to attack by Freon and Ammonia. Fluorocarbon (Viton ) (Fluorel ) (FKM) VT 55 thru 95 -25 to +230 C Combining high temperature toughness with wide chemical agent compatibility, Fluorocarbon compounds feature excellent resistance to petroleum products and solvents, with good high temperature compression set characteristics.

9 Fluorosilicone (FVMQ) FS 40 thru 80 -60 to +200 C Combining the good high and low temperature stability of Silicones with the fuel, oil, and solvent resistance of fluorocarbons. FS compounds feature good compression set and resilience properties. FS compounds are suitable for exposure to air, sunlight, ozone, chlorinated and aromatic hydrocarbons. For Quotes, Prototypes or Questions Call: + or visit ISO No. Width Tol. W. Tol. ISO No. Width Tol. W. Tol. -001 -141 -002 -142 -003 -143 -004 -144 -005 -145 -006 -146 -007 -147 -008 -148 -009 -149 -010 -150 -011 -151 -012 -152 -013 -153 -014 -154 -015 -155 -016 -156 -017 -157 -018 -158 -019 -159 -020 -160 -021 -161 -022 -162 -023 -163 -024 -164 -025 -165 -026 -166 -027 -167 -028 -168 -029 -169 -030 -170 -031 -171 -032 -172 -033 -173 -034 -174 -035 -175 -036 -176 -037 -177 -038 -178 -039 -201 -040 -202 -041 -203 -042 -204 -043 -205 -044 -206 -045 -207 -046 -208 -047 -209 -048 -210 -049 -211 -050 -212 -102 -213 -103 -214 -104 -215 -105 -216 -106 -217 -107 -218 -108 -219 -109 -220 -110 -221 -111 -222 -112 -223 -113 -224 -114 -225 -115 -226 -116 -227 -117 -228 -118 -229 -119 -230 -120 -231 -121 -232 -122 -233 -123 -234 -124 -235 -125 -236 -126 -237 -127 -238 -128 -239

10 -129 -240 -130 -241 -131 -242 -132 -243 -133 -244 -134 -245 -135 -246 -136 -247 -137 -248 -138 -249 -139 -250 -140 -251 For Quotes, Prototypes or Questions Call: + or visit ISO No. Width Tol. W. Tol. ISO No. Width Tol. W. Tol. -252 -365 -253 -366 -254 -367 -255 -368 -256 -369 -257 -370 -258 -371 -259 -372 -260 -373 -261 -374 -262 -375 -263 -376 -264 -377 -265 -378 -266 -379 -267 -380 -268 -381 -269 -382 -270 -383 -271 -384 -272 -385 -273 -386 -274 -387 -275 -388 -276 -389 -277 -390 -278 -391 -279 -392 -280 -393 -281 -394 -282 -395 -283 -425 -284 -426 -309 -427 -310 -428 -311 -429 -312 -430 -313 -431 -314 -432 -315 -433 -316 -434 -317 -435 -318 -436 -319 -437 -320 -438 -321 -439 -322 -440 -323 -441 -324 -442 -325 -443 -326 -444 -327 -445 -328 -446 -329 -447 -330 -448 -331 -449 -332 -450 -333 -451 -334 -452 -335 -453 -336 -454 -337 -455 -338 -456 -339 -457 -340 -458 -341 -459 -342 -460 -343 -461 -344 -462 -345 -463 -346 -464 -347 -465 -348 -466 -349 -467 -350 -468 -351 -469 -352 -470