HI Thread Insert Thread Insert HI British Standard Pipe Thread (BSPT) National Pipe Thread (NPT) Pitch Dimensions Pitch Dimensions CDCL Designation Designation(Right)(Left ) (tpi) d L hmin x f Picture 0 CL Designation Designation Picture(Right)(Left)(tpi)dLhminxf ER 11 - 28BSPT EL 11 -28BSPT 28 6.35 11 0.58 0.6 0.6 ER 11-27NPT EL 11 - 27NPT 27 6.35 11 0.66 0.7 0.8 11 -19BSPT 11 -19BSPT 19 6.35 11 0.86 0.8 0.9 11 -18NPT 11 -18NPT 18 6.35 11 1.01 0.8 1.0 11 -14BSPT 11 -14BSPT 14 6.35 11 1.16 0.9 1.0 R0.137P Internal 11 -14NPT 11 -14NPT 14 6.35 11 1.33 0.8 1.0 CDc 16 - 28BSPT 16-28BSPT 28 9.525 16 0.58 0.6 0.6 27.9327.93 CDc 16-27NPT 16 - 27NPT 27 9.525 16 0.66 0.7 0.8 0 L 0 L x 16 - 19BSPT 16-19BSPT 19 9.525 16 0.86 0.8 0.9 x 16-18NPT 16 - 18NPT 18 9.525 16 1.01 0.8 1.0 LU LU 16- 14BSPT 16-14BSPT 14 9.525 16 1.16 1.0 1.2 903. / R0.137FExterna 16-14NPT 16 - 14NPT 14 9.525 16 1.33 0.9 1.2 16- 11 BSPT 16- 11 BSPT 11 9.525 16 1.48 1.1 1.5 16-11.5NPT 16 - 11.5NPT 11.5 9.525 16 1.64 1.1 1.5 16- 8NPT 16 - 8NPT 8 9.525 16 2.42 1.3 1.8 IR 11 -28BSPT IL 11 - 28BSPT 28 6.35 11 0.58 0.6 0.6 IR 11 - 27 NPT IL 11 -27NPT 27 6.35 11 0.66 0.7 0.8 11 - 19BSPT 11 - 19BSPT 19 6.35 11 0.86 0.8 0.9 f x 11 -18NPT 11 - 18NPT 18 6.35 11 1.01 0.8 1.0 x 11 - 14BSPT 11 - 14BSPT 14 6.35 11 1.16 0.9 1.0 11 -14NPT 11 - 14NPT 14 6.35 11 1.33 0.8 1.0 CD R0.137P Internalc16- 28BSPT16- 28BSPT289.525160.580.60.627.9327.53 CDc 16-27NPT 16-27NPT 27 9.525 16 0.66 0.7 0.8 0 0 c 16- 1 9BSPT 16- 19BSPT 19 9.525 16 0.86 0.8 0.9 L c 16-18NPT 16-18NPT 18 9.525 16 1.01 0.8 1.0 16- 14BSPT 16 - 14BSPT 14 9.525 16 1.16 1.0 1.216- 11 BSPT16 - 11 BSPT119.525161.481.11.5 ^9 - Nfcf / R0.137FExterna 16-14NPT 16-14NPT 14 9.525 16 1.33 0.9 1.216-11.5NPT16-11.5NPT11.59.525161.641.11.5 16- 8NPT 16-8NPT 8 9.525 16 2.42 1.3 1.8 037 038 National Pipe Thread (V Style) Pitch Dimensions 0 Q. Designation Designation(Right)(Left )(tpi) d L hmin x f t Picture British Standard Pipe Thread (V Style) VER 11 - 27NPT VEL 11 -27NPT 27 6.35 11 0.66 0.70 2.0 3.2 Pitch Dimensions 0Q. Designation Designation(Right)(Left ) (tpi) d L hmin x f t Picture 11 - 18NPT 11 - 18NPT 18 6.35 11 1.01 0.70 1.8 3.2CDc11 - 14NPT11 -14NPT146.35111.330.701.83.2 0 x 16 - 27NPT 16 - 27NPT 27 9.525 16 0.66 1.10 2.9 3.6 LU VER 16- 28BSPT VEL 16-28BSPT 28 9.525 16 0.58 1.10 3.0 3.6 16- 18NPT 16- 18NPT 18 9.525 16 1.01 1.10 2.6 3.6 CDc 16- 19BSPT 16- 19BSPT 19 9.525 16 0.86 1.10 2.7 3.6 16- 11.5NPT 16- 11.5NPT 11.5 9.525 16 1.64 1.10 2.1 3.6 t 0x 16- 14BSPT 16- 14BSPT 14 9.525 16 1.16 1.10 2.4 3.6 LU 16 - 11 BSPT 16- 11 BSPT 11 9.525 16 1.48 1.10 2.1 3.6 1"47’ / RD.137P Externa *