
THREADING
Y
ER-NPTF X
External NPTF (National Pipe Threads)
l
Full Profile Laydown Threading Inserts
for Steam, Gas and Water Pipes di
External right-hand shown
NUT
Dimensions Tough 1 Hard
30° 30°
IC50M
IC250
IC908
90°
1°47' SCREW
Designation di TPI l X Y Z
11ER 18 NPTF 6.35 18.0 11.00 0.8 1.0 1 •
11ER 14 NPTF 6.35 14.0 11.00 0.8 1.0 1 •
16ER 27 NPTF 9.52 27.0 16.00 0.7 0.7 1 • •
16ER 18 NPTF 9.52 18.0 16.00 0.8 1.0 1 •
16ER 14 NPTF 9.52 14.0 16.00 0.9 1.2 1 • • •
16ER 11.5 NPTF 9.52 11.5 16.00 1.1 1.5 1 • •
• For Insert Identification System, see page 489. • (National Pipe Threads-Dry Seal) ANSI/ASME B1.20.1-1976 full profile. • For technical information and detailed
cutting data, see pages 536-546
For tools, see pages: C#-SER/L (530) • SER-D (530) • SER/L (529)
Y
IR/L-NPTF
X
Internal NPTF (National Pipe Threads)
Full Profile Laydown Threading Inserts l
for Steam, Gas and Water Pipes
di
Internal left-hand shown
NUT
Dimensions Tough 1 Hard
30° 30°
IC228
IC250
IC908
90° 1°47' SCREW
Designation di TPI l R X Y
06IR 27 NPTF 3.97 27.0 6.00 0.04 0.7 0.6 •
08IR 27 NPTF 4.76 27.0 8.00 0.04 0.6 0.6 •
08IR 18 NPTF 4.76 18.0 8.00 0.06 0.6 0.6 •
11IR 18 NPTF 6.35 18.0 11.00 0.06 0.8 1.0 •
11IRB 18 NPTF 6.35 18.0 11.00 0.06 0.8 0.9 •
11IR 14 NPTF 6.35 14.0 16.00 0.07 0.8 1.0 •
16IR 18 NPTF 9.52 18.0 16.00 0.06 0.8 1.0 •
16IR/L 14 NPTF 9.52 14.0 16.00 0.07 0.9 1.2 • •
16IR 11.5 NPTF 9.52 11.5 16.00 0.09 1.1 1.5 • •
• For Insert Identification System, see page 489 • (National Pipe Threads-Dry seal) ANSI/ASME B1.20.1-1976. • For technical information and detailed cutting data,
see pages 536-546
For tools, see pages: MGSIR/L (534) • SIR/L (531)
Y
R
ER/L-BSPT X
External BSPT (British Standard
l
Pipe) B.S.21-1957 Full Profile
Laydown Threading Inserts di
External right-hand shown
NUT
R0.137P Dimensions Tough 1 Hard
27.5°
IC1007
IC50M
90° R0.137P
IC250
IC508
IC808
IC908
1°47' SCREW
Designation di TPI l R X Y
16ER 28 BSPT 9.52 28.0 16.00 0.11 0.6 0.6 • •
16ER/L 19 BSPT 9.52 19.0 16.00 0.16 0.8 0.9 • • • •
16ER/L 14 BSPT 9.52 14.0 16.00 0.21 1.0 1.2 • • • • •
16ERB 14 BSPT (1) 9.52 14.0 16.00 0.21 1.0 1.2 •
16ERM 14 BSPT (1) 9.52 14.0 16.00 0.21 1.0 1.2 • • •
16ER/L 11 BSPT 9.52 11.0 16.00 0.28 1.1 1.5 • • •
16ERB 11 BSPT (1) 9.52 11.0 16.00 0.28 1.1 1.5 •
16ERM 11 BSPT (1) 9.52 11.0 16.00 0.28 1.1 1.5 • •
• For Insert Identification System, see page 489 • For threading between walls use insert TIP-BSPT. • For technical information and detailed cutting data, see pages
536-546
(1) With pressed chipformer.
For tools, see pages: C#-SER/L (530) • SER-D (530) • SER/L (529)
512 ISCAR