Pipe Tap TaperStyles: 1686, 1700, 0462, 1688, 0464 Bright NPT Carbon Steel HSS 311 Note 3-1/2 thread chamfer. • Style #0462: regular NPT thread design • Style #0464: interrupted thread for better lubrication and chip clearance. Interrupted NPT Thread Regular NPT Thread order number order number regular threads interrupted thread tap tap tap decimal shank overall thread 1686 1700 0462 1688 0464 size TPI series equiv. diameter length length flutes HSS carbon HSS flutes HSS HSS 1/827NPT.1250.31252-1/83/44C69315C69507C642135C69325C64223 *1/827NPT.1250.43752-1/83/44C69316—C642145C69326C64224 1/418NPT.2500.56262-7/161-1/164C69317C69508C642155C69327C64225 3/818NPT.3750.70002-9/161-1/164C69318C69509C642165C69328C64226 1/214NPT.5000.68753-1/81-3/84C69319C69510C642175C69329C64227 3/414NPT.7500.90633-1/41-3/85C69320C69511C642185C69330C64228 111-1/2NPT1.00001.12503-3/41-3/85C69321C69512C642195C69331C64229 1-1/411-1/2NPT1.25001.312541-3/45C69322—C642205C69332C64230 1-1/211-1/2NPT1.50001.50004-1/41-3/47C69323—C64221––– 211-1/2NPT2.00001.87504-1/21-3/47C69324—C64222––– *large shank Pipe Tap Straight Pipe TapsStyles: 1687, 0463 Bright NPS HSS Note 3-1/2 thread chamfer. NPS thread design - suitable for NPSC or NPSM. order number tap tap tap decimal no. of shank overall thread 1687 0463 size TPI series equivalent flutes diameter length length Bright Bright 1/827NPSC.12504.43752-1/83/4C69333C64231 1/418NPSC.25004.56262-7/161-1/16C69334C64232 3/818NPSC.37504.70002-9/161-1/16C69335C64233 1/214NPSC.50004.68753-1/81-3/8C69336C64234 3/414NPSC.75005.90633-1/41-3/8C69337C64235 111-1/2NPSC1.000051.12503-3/41-3/8C69338C64236
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