Product category

Appendix

MALE NPT IDENTIFICATION CHART

MALE NPT IDENTIFICATION CHART

Model:MALE NPT IDENTIFICATION CHART
MALE NPT IDENTIFICATION CHART
Description
The NPT thread has been popular for low pressure hydraulics for many years, Most NPT fittings and ports have a tapered thread and start loose and then tighten up as the wedging of the threads seals the connection.This style of union looks bulkier as the fiting does not screw all the way up A thread sealant either liquid or tape is required to ensure the connection does no leak.

THREAD SIZE THREADS PER INCH CLOSEST AN SIZE
1/16" 27 -3
1/8" 27 -4
1/4" 18 -6
3/8" 18 -8
1/2" 14 -10
3/4" 14 -12
1" 11.5 -16
1-1/4" 11.5 -20
1-1/2" 11.5 -24
2" 11.5 -32

THREAD SIZE THREADS SIZE SAE THREADS PER INCH MAX TORQUE
-3 3/8" 24 8.75
-4 7/16" 20 11.5
-5 1/2" 20 14.3
-6 9/16" 18 16.25
-7 5/8" 18 19.5
-8 3/4" 16 29
-10 7/8" 14 35
-12 1-1/16" 12 45


HEX SIZES B NUT AN SIDE S NUT HOSE SIDE
-3 1/2" 7/16"
-4 9/16" 23/32"
-6 11/16" 7/8"
-8 7/8" 1-1/32"
-10 1" 1-7/32"
-12 1-1/4" 1-7/16"
-16 1-1/2" 1-3/4"
-20 1-13/16" 2-5/16"