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O Rings

Description

An O-ring, also known as a packing, or a toric joint, is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a round cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface.

O-Rings are the most common form of general purpose seal.

How does an O-Ring work?

The compression (or more accurately the deformation) of the O-ring provides part of the sealing function. An additional sealing function is realized when the O-ring is activated by the pressure of the gas or liquid that the O-ring serves to contain. The containment surface ensures that the sealing function is maintained by keeping the O-ring where it needs to be. As pressure is applied to the seal the inherent flexibility of the material, and resistance to change of volume, transfer the pressure to the axis of compression.

Please download our O ring design guide for more detailed information. 

Download our Design Guide

kc seals design guide o ring

pdfO-Ring Design Guide

Available Materials

Nitriles (NBR, HNBR, XNBR)

DescriptionMaterial CodeData Sheet
NBR 70D 0101 pdfNBR 70
NBR 90D 0102 pdfNBR 90
HNBR 70D 0120 pdfHNBR 70
HNBR 80D 0121 pdfHNBR 80
HNBR 90D 0122 pdfHNBR 90
XNBR 70D 0130 pdfXNBR 70

Fluoroelastomers (FKM, Viton®, TFE/P, Aflas®)

DescriptionMaterial CodeData Sheet
Viton® 75D 0201 pdfViton® 75
Viton® 90D 0202 pdfViton® 90
High Performance FKM CV75 pdfHigh Performance FKM
Aflas® 80D 0210 pdfAflas® 80D
Low Compression Set FKM 0203 pdfLow Compression Set FKM
Low Temp FKM 0204 pdfLow Temp FKM
FDA Compliant FKM 0278 pdfFDA Compliant FKM

Perfluoroelastomers (FFKM, Simriz®)

DescriptionMaterial CodeData Sheet
Extreme High Temp and Steam resistance 498 pdfSZ498 High Temp/Low Compression Set FFKM
Broad Chemical Resistance 485 pdfSZ485 Broad Chemical Resistance
General Purpose Semiconductor 486 pdfSZ486 General Purpose, Semiconductor
General Purpose FFKM 481 pdfGeneral Purpose FFKM
High Durometer FFKM 134 pdfHigh Durometer FFKM

Ethylene Propylene Diene Monomer (EPDM)

DescriptionMaterial CodeData Sheet
General Purpose EPDM 0301 pdfGeneral Purpose EPDM
Low Density EPDM 0305 pdfLow Density EPDM

Silicone (VMQ)

DescriptionMaterial CodeData Sheet
General Purpose VMQ 0601 pdfGeneral Purpose VMQ
Low Duro VMQ 0604 pdfLow Duro VMQ

Fluorosilicone (FVMQ)

DescriptionMaterial CodeData Sheet
General Purpose FVMQ 0501 pdfGeneral Purpose FVMQ
Low Duro FVMQ PTFE 0502 pdfLow Duro FVMQ PTFE
Lubricated FVMQ 0503 pdfLubricated FVMQ
Sizing information & Part Numbers

For more detailed information regarding gland house recommendations and specification, please refer to our O-Ring design guide

SAE AS568 Sizing guide
"0" Series Sizes

AS 568NOMINAL(REF.)MEASUREMENTS IN INCHES
SizeIDCSIDTOLERANCE ±CS
~001 1/32 1/32 0.029 0.004 0.040
~002 3/64 3/64 0.042 0.004 0.050
~003 1/16 1/16 0.056 0.004 0.060
~004 5/64 1/16 0.070 0.005 0.070
~005 3/32 1/16 0.101 0.005 0.070
~006 1/8 1/16 0.114 0.005 0.070
~007 5/32 1/16 0.145 0.005 0.070
~008 3/16 1/16 0.176 0.005 0.070
~009 7/32 1/16 0.208 0.005 0.070
~010 1/4 1/16 0.239 0.005 0.070
~011 5/16 1/16 0.301 0.005 0.070
~012 3/8 1/16 0.364 0.005 0.070
~013 7/16 1/16 0.426 0.005 0.070
~014 1/2 1/16 0.489 0.005 0.070
~015 9/16 1/16 0.551 0.007 0.070
~016 5/8 1/16 0.614 0.009 0.070
~017 11/16 1/16 0.676 0.009 0.070
~018 3/4 1/16 0.739 0.009 0.070
~019 13/16 1/16 0.801 0.009 0.070
~020 7/8 1/16 0.864 0.009 0.070
~021 15/16 1/16 0.926 0.009 0.070
~022 1 1/16 0.989 0.010 0.070
~023 1 1/16 1/16 1.051 0.010 0.070
~024 1 1/8 1/16 1.114 0.010 0.070
~025 1 3/16 1/16 1.176 0.011 0.070
~026 1 1/4 1/16 1.239 0.011 0.070
~027 1 5/16 1/16 1.301 0.011 0.070
~028 1 3/8 1/16 1.364 0.013 0.070
~029 1 1/2 1/16 1.489 0.013 0.070
~030 1 5/8 1/16 1.614 0.013 0.070
~031 1 3/4 1/16 1.739 0.015 0.070
~032 1 7/8 1/16 1.864 0.015 0.070
~033 2 1/16 1.989 0.018 0.070
~034 2 1/8 1/16 2.114 0.018 0.070
~035 2 1/4 1/16 2.239 0.018 0.070
~036 2 3/8 1/16 2.364 0.018 0.070
~037 2 1/2 1/16 2.489 0.018 0.070
~038 2 5/8 1/16 2.614 0.020 0.070
~039 2 3/4 1/16 2.739 0.020 0.070
~040 2 7/8 1/16 2.864 0.020 0.070
~041 3 1/16 2.989 0.024 0.070
~042 3 1/4 1/16 3.239 0.024 0.070
~043 3 1/2 1/16 3.489 0.024 0.070
~044 3 3/4 1/16 3.739 0.027 0.070
~045 4 1/16 3.989 0.027 0.070
~046 4 1/4 1/16 4.239 0.030 0.070
~047 4 1/2 1/16 4.489 0.030 0.070
~048 4 3/4 1/16 4.739 0.030 0.070
~049 5 1/16 4.989 0.037 0.070
~050 5 1/4 1/16 5.239 0.037 0.070

"100" Series Sizes

AS 568NOMINAL(REF.)MEASUREMENTS IN INCHES
SizeIDCSIDTOLERANCE ±CS
~102 1/16 3/32 0.049 0.005 0.103
~103 3/32 3/32 0.081 0.005 0.103
~104 1/8 3/32 0.112 0.005 0.103
~105 5/32 3/32 0.143 0.005 0.103
~106 3/16 3/32 0.174 0.005 0.103
~107 7/32 3/32 0.206 0.005 0.103
~108 1/4 3/32 0.237 0.005 0.103
~109 5/16 3/32 0.299 0.005 0.103
~110 3/8 3/32 0.362 0.005 0.103
~111 7/16 3/32 0.424 0.005 0.103
~112 1/2 3/32 0.487 0.005 0.103
~113 9/16 3/32 0.549 0.007 0.103
~114 5/8 3/32 0.612 0.009 0.103
~115 11/16 3/32 0.674 0.009 0.103
~116 3/4 3/32 0.737 0.009 0.103
~117 13/16 3/32 0.799 0.010 0.103
~118 7/8 3/32 0.862 0.010 0.103
~119 15/16 3/32 0.924 0.010 0.103
~120 1 3/32 0.987 0.010 0.103
~121 1 1/16 3/32 1.049 0.010 0.103
~122 1 1/8 3/32 1.112 0.010 0.103
~123 1 3/16 3/32 1.174 0.012 0.103
~124 1 1/4 3/32 1.237 0.012 0.103
~125 1 5/16 3/32 1.299 0.012 0.103
~126 1 3/8 3/32 1.362 0.012 0.103
~127 1 7/16 3/32 1.424 0.012 0.103
~128 1 1/2 3/32 1.487 0.012 0.103
~129 1 9/16 3/32 1.549 0.015 0.103
~130 1 5/8 3/32 1.612 0.015 0.103
~131 1 11/16 3/32 1.674 0.015 0.103
~132 1 3/4 3/32 1.737 0.015 0.103
~133 1 13/16 3/32 1.799 0.015 0.103
~134 1 7/8 3/32 1.862 0.015 0.103
~135 1 15/16 3/32 1.925 0.017 0.103
~136 2 3/32 1.987 0.017 0.103
~137 2 1/16 3/32 2.050 0.017 0.103
~138 2 1/8 3/32 2.112 0.017 0.103
~139 2 3/16 3/32 2.175 0.017 0.103
~140 2 1/4 3/32 2.237 0.017 0.103
~141 2 5/16 3/32 2.300 0.020 0.103
~142 2 3/8 3/32 2.362 0.020 0.103
~143 2 7/16 3/32 2.425 0.020 0.103
~144 2 1/2 3/32 2.487 0.020 0.103
~145 2 9/16 3/32 2.550 0.020 0.103
~146 2 5/8 3/32 2.612 0.020 0.103
~147 2 11/16 3/32 2.675 0.022 0.103
~148 2 3/4 3/32 2.737 0.022 0.103
~149 2 13/16 3/32 2.800 0.022 0.103
~150 2 7/8 3/32 2.862 0.022 0.103
~151 3 3/32 2.987 0.024 0.103
~152 3 1/4 3/32 3.237 0.024 0.103
~153 3 1/2 3/32 3.487 0.024 0.103
~154 3 3/4 3/32 3.737 0.028 0.103
~155 4 3/32 3.987 0.028 0.103
~156 4 1/4 3/32 4.237 0.030 0.103
~157 4 1/2 3/32 4.487 0.030 0.103
~158 4 3/4 3/32 4.737 0.035 0.103
~159 5 3/32 4.987 0.035 0.103
~160 5 1/4 3/32 5.237 0.035 0.103
~161 5 1/2 3/32 5.487 0.035 0.103
~162 5 3/4 3/32 5.737 0.035 0.103
~163 6 3/32 5.987 0.035 0.103
~164 6 1/4 3/32 6.237 0.040 0.103
~165 6 1/2 3/32 6.487 0.040 0.103
~166 6 3/4 3/32 6.737 0.040 0.103
~167 7 3/32 6.987 0.040 0.103
~168 7 1/4 3/32 7.237 0.045 0.103
~169 7 1/2 3/32 7.487 0.045 0.103
~170 7 3/4 3/32 7.737 0.045 0.103
~171 8 3/32 7.987 0.045 0.103
~172 8 1/4 3/32 8.237 0.050 0.103
~173 8 1/2 3/32 8.487 0.050 0.103
~174 8 3/4 3/32 8.737 0.050 0.103
~175 9 3/32 8.987 0.050 0.103
~176 9 1/4 3/32 9.237 0.055 0.103
~177 9 1/2 3/32 9.487 0.055 0.103
~178 9 3/4 3/32 9.737 0.055 0.103

"200" Series Sizes

AS 568NOMINAL(REF.)MEASUREMENTS IN INCHES
SizeIDCSIDTOLERANCE ±CS
~201 3/16 1/8 0.171 0.005 0.139
~202 1/4 1/8 0.234 0.005 0.139
~203 5/16 1/8 0.296 0.005 0.139
~204 3/8 1/8 0.359 0.005 0.139
~205 7/16 1/8 0.421 0.005 0.139
~206 1/2 1/8 0.484 0.005 0.139
~207 9/16 1/8 0.546 0.007 0.139
~208 5/8 1/8 0.609 0.009 0.139
~209 11/16 1/8 0.671 0.009 0.139
~210 3/4 1/8 0.734 0.010 0.139
~211 13/16 1/8 0.796 0.010 0.139
~212 7/8 1/8 0.859 0.010 0.139
~213 15/16 1/8 0.921 0.010 0.139
~214 1 1/8 0.984 0.010 0.139
~215 1 1/16 1/8 1.046 0.010 0.139
~216 1 1/8 1/8 1.109 0.012 0.139
~217 1 3/16 1/8 1.171 0.012 0.139
~218 1 1/4 1/8 1.234 0.012 0.139
~219 1 5/16 1/8 1.296 0.012 0.139
~220 1 3/8 1/8 1.359 0.012 0.139
~221 1 7/16 1/8 1.421 0.012 0.139
~222 1 1/2 1/8 1.484 0.015 0.139
~223 1 5/8 1/8 1.609 0.015 0.139
~224 1 3/4 1/8 1.734 0.015 0.139
~225 1 7/8 1/8 1.859 0.018 0.139
~226 2 1/8 1.984 0.018 0.139
~227 2 1/8 1/8 2.109 0.018 0.139
~228 2 1/4 1/8 2.234 0.020 0.139
~229 2 3/8 1/8 2.359 0.020 0.139
~230 2 1/2 1/8 2.484 0.020 0.139
~231 2 5/8 1/8 2.609 0.020 0.139
~232 2 3/4 1/8 2.734 0.024 0.139
~233 2 7/8 1/8 2.859 0.024 0.139
~234 3 1/8 2.984 0.024 0.139
~235 3 1/8 1/8 3.109 0.024 0.139
~236 3 1/4 1/8 3.234 0.024 0.139
~237 3 3/8 1/8 3.359 0.024 0.139
~238 3 1/2 1/8 3.484 0.024 0.139
~239 3 5/8 1/8 3.609 0.028 0.139
~240 3 3/4 1/8 3.734 0.028 0.139
~241 3 7/8 1/8 3.859 0.028 0.139
~242 4 1/8 3.984 0.028 0.139
~243 4 1/8 1/8 4.109 0.028 0.139
~244 4 1/4 1/8 4.234 0.030 0.139
~245 4 3/8 1/8 4.359 0.030 0.139
~246 4 1/2 1/8 4.484 0.030 0.139
~247 4 5/8 1/8 4.609 0.030 0.139
~248 4 3/4 1/8 4.734 0.030 0.139
~249 4 7/8 1/8 4.859 0.035 0.139
~250 5 1/8 4.984 0.035 0.139
~251 5 1/8 1/8 5.109 0.035 0.139
~252 5 1/4 1/8 5.234 0.035 0.139
~253 5 3/8 1/8 5.359 0.035 0.139
~254 5 1/2 1/8 5.484 0.035 0.139
~255 5 5/8 1/8 5.609 0.035 0.139
~256 5 3/4 1/8 5.734 0.035 0.139
~257 5 7/8 1/8 5.859 0.035 0.139
~258 6 1/8 5.984 0.035 0.139
~259 6 1/4 1/8 6.234 0.040 0.139
~260 6 1/2 1/8 6.484 0.040 0.139
~261 6 3/4 1/8 6.734 0.040 0.139
~262 7 1/8 6.984 0.040 0.139
~263 7 1/4 1/8 7.234 0.045 0.139
~264 7 1/2 1/8 7.484 0.045 0.139
~265 7 3/4 1/8 7.734 0.045 0.139
~266 8 1/8 7.984 0.045 0.139
~267 8 1/4 1/8 8.234 0.050 0.139
~268 8 1/2 1/8 8.484 0.050 0.139
~269 8 3/4 1/8 8.734 0.050 0.139
~270 9 1/8 8.984 0.050 0.139
~271 9 1/4 1/8 9.234 0.055 0.139
~272 9 1/2 1/8 9.484 0.055 0.139
~273 9 3/4 1/8 9.734 0.055 0.139
~274 10 1/8 9.984 0.055 0.139
~275 10 1/2 1/8 10.484 0.055 0.139
~276 11 1/8 10.984 0.065 0.139
~277 11 1/2 1/8 11.484 0.065 0.139
~278 12 1/8 11.984 0.065 0.139
~279 13 1/8 12.984 0.065 0.139
~280 14 1/8 13.984 0.065 0.139
~281 15 1/8 14.984 0.065 0.139
~282 16 1/8 15.955 0.075 0.139
~283 17 1/8 16.955 0.080 0.139
~284 18 1/8 17.955 0.085 0.139

"300" Series Sizes

AS 568NOMINAL(REF.)MEASUREMENTS IN INCHES
SizeIDCSIDTOLERANCE ±CS
~309 7/16 3/16 0.412 0.005 0.21
~310 1/2 3/16 0.475 0.005 0.21
~311 9/16 3/16 0.537 0.007 0.21
~312 5/8 3/16 0.600 0.009 0.21
~313 11/16 3/16 0.662 0.009 0.21
~314 3/4 3/16 0.725 0.010 0.21
~315 13/16 3/16 0.787 0.010 0.21
~316 7/8 3/16 0.850 0.010 0.21
~317 15/16 3/16 0.912 0.010 0.21
~318 1 3/16 0.975 0.010 0.21
~319 1 1/16 3/16 1.037 0.010 0.21
~320 1 1/8 3/16 1.100 0.012 0.21
~321 1 3/16 3/16 1.162 0.012 0.21
~322 1 1/4 3/16 1.225 0.012 0.21
~323 1 5/16 3/16 1.287 0.012 0.21
~324 1 3/8 3/16 1.350 0.012 0.21
~325 1 1/2 3/16 1.475 0.015 0.21
~326 1 5/8 3/16 1.600 0.015 0.21
~327 1 3/4 3/16 1.725 0.015 0.21
~328 1 7/8 3/16 1.850 0.015 0.21
~329 2 3/16 1.975 0.018 0.21
~330 2 1/8 3/16 2.100 0.018 0.21
~331 2 1/4 3/16 2.225 0.018 0.21
~332 2 3/8 3/16 2.350 0.018 0.21
~333 2 1/2 3/16 2.475 0.020 0.21
~334 2 5/8 3/16 2.600 0.020 0.21
~335 2 3/4 3/16 2.725 0.020 0.21
~336 2 7/8 3/16 2.850 0.020 0.21
~337 3 3/16 2.975 0.024 0.21
~338 3 1/8 3/16 3.100 0.024 0.21
~339 3 1/4 3/16 3.225 0.024 0.21
~340 3 3/8 3/16 3.350 0.024 0.21
~341 3 1/2 3/16 3.475 0.024 0.21
~342 3 5/8 3/16 3.600 0.028 0.21
~343 3 3/4 3/16 3.725 0.028 0.21
~344 3 7/8 3/16 3.850 0.028 0.21
~345 4 3/16 3.975 0.028 0.21
~346 4 1/8 3/16 4.100 0.028 0.21
~347 4 1/4 3/16 4.225 0.030 0.21
~348 4 3/8 3/16 4.350 0.030 0.21
~349 4 1/2 3/16 4.475 0.030 0.21
~350 4 5/8 3/16 4.600 0.030 0.21
~351 4 3/4 3/16 4.725 0.030 0.21
~352 4 7/8 3/16 4.850 0.030 0.21
~353 5 3/16 4.975 0.037 0.21
~354 5 1/8 3/16 5.100 0.037 0.21
~355 5 1/4 3/16 5.225 0.037 0.21
~356 5 3/8 3/16 5.350 0.037 0.21
~357 5 1/2 3/16 5.475 0.037 0.21
~358 5 5/8 3/16 5.600 0.037 0.21
~359 5 3/4 3/16 5.725 0.037 0.21
~360 5 7/8 3/16 5.850 0.037 0.21
~361 6 3/16 5.975 0.037 0.21
~362 6 1/4 3/16 6.225 0.040 0.21
~363 6 1/2 3/16 6.475 0.040 0.21
~364 6 3/4 3/16 6.725 0.040 0.21
~365 7 3/16 6.975 0.040 0.21
~366 7 1/4 3/16 7.225 0.045 0.21
~367 7 1/2 3/16 7.475 0.045 0.21
~368 7 3/4 3/16 7.725 0.045 0.21
~369 8 3/16 7.975 0.045 0.21
~370 8 1/4 3/16 8.225 0.050 0.21
~371 8 1/2 3/16 8.475 0.050 0.21
~372 8 3/4 3/16 8.725 0.050 0.21
~373 9 3/16 8.975 0.050 0.21
~374 9 1/4 3/16 9.225 0.055 0.21
~375 9 1/2 3/16 9.475 0.055 0.21
~376 9 3/4 3/16 9.725 0.055 0.21
~377 10 3/16 9.975 0.055 0.21
~378 10 1/2 3/16 10.475 0.060 0.21
~379 11 3/16 10.975 0.060 0.21
~380 11 1/2 3/16 11.475 0.065 0.21
~381 12 3/16 11.975 0.065 0.21
~382 13 3/16 12.975 0.065 0.21
~383 14 3/16 13.975 0.070 0.21
~384 15 3/16 14.975 0.070 0.21
~385 16 3/16 15.955 0.075 0.21
~386 17 3/16 16.955 0.080 0.21
~387 18 3/16 17.955 0.085 0.21
~388 19 3/16 18.955 0.090 0.21
~389 20 3/16 19.955 0.095 0.21
~390 21 3/16 20.955 0.095 0.21
~391 22 3/16 21.955 0.100 0.21
~392 23 3/16 22.940 0.105 0.21
~393 24 3/16 23.940 0.110 0.21
~394 25 3/16 24.940 0.115 0.21
~395 26 3/16 25.940 0.120 0.21

"400" Series Sizes

AS 568NOMINAL(REF.)MEASUREMENTS IN INCHES
SizeIDCSIDTOLERANCE ±CS
~425 4 1/2 1/4 4.475 0.033 0.275
~426 4 5/8 1/4 4.600 0.033 0.275
~427 4 3/4 1/4 4.725 0.033 0.275
~428 4 7/8 1/4 4.850 0.033 0.275
~429 5 1/4 4.975 0.037 0.275
~430 5 1/8 1/4 5.100 0.037 0.275
~431 5 1/4 1/4 5.225 0.037 0.275
~432 5 3/8 1/4 5.350 0.037 0.275
~433 5 1/2 1/4 5.475 0.037 0.275
~434 5 5/8 1/4 5.600 0.037 0.275
~435 5 3/4 1/4 5.725 0.037 0.275
~436 5 7/8 1/4 5.850 0.037 0.275
~437 6 1/4 5.975 0.037 0.275
~438 6 1/4 1/4 6.225 0.040 0.275
~439 6 1/2 1/4 6.475 0.040 0.275
~440 6 3/4 1/4 6.725 0.040 0.275
~441 7 1/4 6.975 0.040 0.275
~442 7 1/4 1/4 7.225 0.045 0.275
~443 7 1/2 1/4 7.475 0.045 0.275
~444 7 3/4 1/4 7.725 0.045 0.275
~445 8 1/4 7.975 0.045 0.275
~446 8 1/2 1/4 8.475 0.055 0.275
~447 9 1/4 8.975 0.055 0.275
~448 9 1/2 1/4 9.475 0.055 0.275
~449 10 1/4 9.975 0.055 0.275
~450 10 1/2 1/4 10.475 0.060 0.275
~451 11 1/4 10.975 0.060 0.275
~452 11 1/2 1/4 11.475 0.060 0.275
~453 12 1/4 11.975 0.060 0.275
~454 12 1/2 1/4 12.475 0.060 0.275
~455 13 1/4 12.975 0.060 0.275
~456 13 1/2 1/4 13.475 0.070 0.275
~457 14 1/4 13.975 0.070 0.275
~458 14 1/2 1/4 14.475 0.070 0.275
~459 15 1/4 14.975 0.070 0.275
~460 15 1/2 1/4 15.475 0.070 0.275
~461 16 1/4 15.955 0.075 0.275
~462 16 1/2 1/4 16.455 0.075 0.275
~463 17 1/4 16.955 0.080 0.275
~464 17 1/2 1/4 17.455 0.085 0.275
~465 18 1/4 17.955 0.085 0.275
~466 18 1/2 1/4 18.455 0.085 0.275
~467 19 1/4 18.955 0.090 0.275
~468 19 1/2 1/4 19.455 0.090 0.275
~469 20 1/4 19.955 0.095 0.275
~470 21 1/4 20.955 0.095 0.275
~471 22 1/4 21.955 0.100 0.275
~472 23 1/4 22.940 0.105 0.275
~473 24 1/4 23.940 0.110 0.275
~474 25 1/4 24.940 0.115 0.275
~475 26 1/4 25.940 0.120 0.275

"900" Series Sizes

AS 568NOMINAL(REF.)MEASUREMENTS IN INCHES
SizeIDCSIDTOLERANCE ±CS
~901 3/32   0.185 0.005 0.056
~902 1/8   0.239 0.005 0.064
~903 3/16   0.301 0.005 0.064
~904 1/4   0.351 0.005 0.072
~905 5/16   0.414 0.005 0.072
~906 3/8   0.468 0.005 0.078
~907 7/16   0.530 0.007 0.082
~908 1/2   0.644 0.009 0.087
~909 9/16   0.706 0.009 0.097
~910 5/8   0.755 0.009 0.097
~911 11/16   0.863 0.009 0.116
~912 3/4   0.924 0.009 0.116
~913 13/16   0.986 0.010 0.116
~914 7/8   1.047 0.010 0.116
~916 1   1.171 0.010 0.116
~918 1 1/8   1.355 0.012 0.116
~920 1 1/4   1.475 0.014 0.118
~924 1 1/2   1.720 0.014 0.118
~928 1 3/4   2.090 0.018 0.118
~932 2   2.337 0.018 0.118