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IR/L-NPT : Internal NPT (National Pipe Threads) full profile laydown threading inserts. IR/L - ground periphery and rake, IRB - with a chipformer and peripherally ground, IRM - with a chipformer. Used for steam, gas and water pipes.(-)Internal NPT (National Pipe Threads) Full Profile Laydown Threading Inserts for Steam, Gas and Water Pipes(+)
Internal left-hand shown
 
Internal left-hand shown
 
  DesignationOrd IC TPI  RE INSL PDY PDX HAND U-type CICT  SC e AN CBMD CEDC ClssID CNC COATP D1 EPSR FTDZ GAN GRDMFG GTC HA HB IFS IH IIC ISCTMP ISYC LOGH LOGL LOGW NIS NT PDPT S S1 SSC  TCTR THFT TPT TTP UST ZAX ApplMat StaSteelCastIronHardMa NFMetalsSupTit CutEdMatCoating GICATGIREMgiicGICODETough ‹————› Hard
Grade & Vc     Click on Grade No. for Cutting Speed
  06IR 27 NPT 10~4.0027.00.046.880.60.6R~X~1T~3~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC228 ~INSCPRFTHF~~0.00~3~R~IS$$85809002156878~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~6~~NPT60~F~INT~C~0.00~1~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiCN+TiN ~5901382 1 IC228 
  08IR 18 NPT 20~5.0018.00.068.240.60.8R~X~1T~3~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC228 ~INSCPRFTHF~~0.00~3~R~IS$$123474670952223~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~8~~NPT60~F~INT~C~0.00~1~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5996066 2 IC228 IC908 
  11IL 18 NPT 40~6.3518.00.0611.000.81.0L~X~1T~~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC908 ~INSCPRFTHF~~0.00~3~L~IS$$145453847156769~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~11~~NPT60~F~INT~C~0.00~1~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5902862 1 IC908 
  11IR 18 NPT 40~6.3518.00.0611.000.81.0R~X~1T~3~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC250 ~INSCPRFTHF~~0.00~3~R~IS$$199824840291068~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~11~~NPT60~F~INT~C~0.00~1~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5994822 2 IC250 IC908 
  11IL 14 NPT 50~6.3514.00.0711.000.81.0L~X~1T~~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC250 ~INSCPRFTHF~~0.00~3~L~IS$$145453847156769~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~11~~NPT60~F~INT~C~0.00~1~Steel~Stainless Steel~    Carbide~TiCN+TiN ~5995332 1 IC250 
  11IR 14 NPT 50~6.3514.00.0711.000.81.0R~X~1T~3~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC1007~INSCPRFTHF~~0.00~3~R~IS$$197153480986128~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~11~~NPT60~F~INT~C~0.00~1~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5902030 3 IC250 IC908 IC1007 
  16IL 27 NPT 60~9.5227.00.0416.490.60.6L~X~1~~~Z~~~~~~~~~IC250 ~~~~~~~~~~~~~1~~~~~~NPT60~F~INT~~0.00~~Steel~Stainless Steel~    Carbide~TiCN+TiN ~3409704 1Y IC250 
  16IR 27 NPT 60~9.5227.00.0416.490.70.8R~X~1T~3~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC908 ~INSCPRFTHF~~0.00~3~R~IS$$551043064856400~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~16~~NPT60~F~INT~C~0.01~~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5996115 1 IC908 
  16IR 18 NPT 70~9.5218.00.0616.490.81.0R~X~1T~3~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC908 ~INSCPRFTHF~~0.00~3~R~IS$$551043064856400~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~16~~NPT60~F~INT~C~0.00~~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5902181 1 IC908 
  16IRM 14 NPT   80~9.5214.00.0516.490.91.2R~X~1T~3~~B~3~71DDA089C8D1E~3~~~60.0~~~IC1007~INSCPRFTHF~~0.00~3~R~IS$$551043064856400~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~16~~NPT60~F~INT~C~0.00~~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5921256 With pressed chipformer 4 IC250 IC808 IC908 IC1007 
  16IRB 14 NPT   90~9.5214.00.0716.490.91.2R~X~1T~3~~B~3~71DDA089C8D1E~3~~~60.0~~~IC908 ~INSCPRFTHF~~0.00~3~R~IS$$551043064856400~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~16~~NPT60~F~INT~C~0.00~~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5902601 With pressed chipformer 1 IC908 
  16IL 14 NPT 100~9.5214.00.0716.490.91.2L~X~1T~3~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC908 ~INSCPRFTHF~~0.00~3~L~IS$$451404211356630~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~16~~NPT60~F~INT~C~0.00~~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5903353 1 IC908 
  16IR 14 NPT 100~9.5214.00.0716.490.91.2R~X~1T~3~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC1007~INSCPRFTHF~~0.00~3~R~IS$$551043064856400~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~16~~NPT60~F~INT~C~0.00~~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5993037 4 IC228 IC250 IC908 IC1007 
  16IRB 11.5 NPT   110~9.5211.50.0916.491.11.5R~X~1T~3~~B~3~71DDA089C8D1E~3~~~60.0~~~IC908 ~INSCPRFTHF~~0.00~3~R~IS$$551043064856400~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~16~~NPT60~F~INT~C~0.00~~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5902828 With pressed chipformer 1 IC908 
  16IRM 11.5 NPT   110~9.5211.50.0916.491.11.5R~X~1T~3~~B~3~71DDA089C8D1E~3~~~60.0~~~IC1007~INSCPRFTHF~~0.00~3~R~IS$$551043064856400~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~16~~NPT60~F~INT~C~0.00~~Steel~Stainless Steel~Cast Iron~Hard Materials~Non Ferrous Metals~Superalloys and titanium~Carbide~TiAlN ~5921242 With pressed chipformer 4 IC508 IC808 IC908 IC1007 
  16IL 11.5 NPT 120~9.5211.50.0916.491.11.5L~X~1T~3~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC250 ~INSCPRFTHF~~0.00~3~L~IS$$392552748973602~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~16~~NPT60~F~INT~C~0.00~~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5990607 2 IC250 IC908 
  16IR 11.5 NPT 120~9.5211.50.0916.491.11.5R~X~1T~3~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC1007~INSCPRFTHF~~0.00~3~R~IS$$543619502068992~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~16~~NPT60~F~INT~C~0.00~~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5901939 3 IC50M IC908 IC1007 
  16IRM 8 NPT   130~9.528.00.1216.491.31.8R~X~1T~3~~B~3~71DDA089C8D1E~3~~~60.0~~~IC1007~INSCPRFTHF~~0.00~3~R~IS$$551043064856400~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~16~~NPT60~F~INT~C~0.00~~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5903459 With pressed chipformer 3 IC808 IC908 IC1007 
  16IRB 8 NPT   140~9.528.00.1116.491.21.7R~X~1T~3~~B~3~71DDA089C8D1E~3~~~60.0~~~IC908 ~INSCPRFTHF~~0.00~3~R~IS$$551043064856400~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~16~~NPT60~F~INT~C~0.00~~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5902827 With pressed chipformer 1 IC908 
  16IL 8 NPT 150~9.528.00.1116.491.31.8L~X~1T~3~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC250 ~INSCPRFTHF~~0.00~3~L~IS$$392552748973602~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~16~~NPT60~F~INT~C~0.00~~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5903351 2 IC250 IC908 
  16IR 8 NPT 150~9.528.00.1116.491.21.7R~X~1T~3~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC08 ~INSCPRFTHF~~0.00~3~R~IS$$543619502068992~GEMLI16121010~202-08~0.00~0.00~0.00~1~1~~~~16~~NPT60~F~INT~C~0.00~~Steel~Stainless Steel~Cast Iron~Hard Materials~Non Ferrous Metals~Superalloys and titanium~Carbide~TiAlN ~5901938 3Y IC250 IC08 IC908 
  22IR 11.5 NPT 2M   160~12.7011.50.0922.002.33.5R~X~2T~3~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC908 ~INSCPRFTHF~~0.00~3~R~IS$$331324316724600~GEMLI16121010~202-09~0.00~0.00~0.00~1~2~~~~22~~NPT60~F~INT~C~0.00~~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5902445 Multi-tooth 1 IC908 
  27IR 11.5 NPT 3M   170~15.8811.50.0927.503.35.5R~X~3T~3~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC908 ~INSCPRFTHF~~0.00~3~R~IS$$202854863902122~GEMLI16121010~202-09~0.00~0.00~0.00~1~3~~~~27~~NPT60~F~INT~C~0.00~~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5902444 Multi-tooth 1 IC908 
  27IR 8 NPT 2M   180~15.888.00.1227.503.15.0R~X~2T~3~~Z~3~71DDA089C8D1E~3~~~60.0~~~IC908 ~INSCPRFTHF~~0.00~3~R~IS$$202854863902122~GEMLI16121010~202-09~0.00~0.00~0.00~1~2~~~~27~~NPT60~F~INT~C~0.02~~Steel~Stainless Steel~Cast Iron~Hard Materials~ Superalloys and titanium~Carbide~TiAlN ~5902448 Multi-tooth 1 IC908 
For Insert Identification System, click on "More Info"
National Pipe Threads ANSI/ASME B1.20.1-1983


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