API 5B EUT – EUE – UP Tubing & NUT – NUE – Tubing 3/4″ TPF

4-1/2" 8 NUE RING GAUGE NIST4-1/2" 8 NUE PLUG GAUGE NIST4" 8 NUE RING GAUGE NIST4" 8 NUE PLUG GAUGE NIST3-1/2" NUE RING GAUGE NIST3-1/2" NUE PLUG GAUGE NIST2-7/8" NUE RING GAUGE NIST2-7/8" NUE PLUG GAUGE NIST2-3/8" 10 NUE RING GAUGE2-3/8" 10 NUE PLUG GAUGE NIST1.900" 10 NUE/ 1.900 IJ RING GAUGE NIM1.900" 10 NUE/ 1.900 IJ PLUG GAUGE NIM1.660" 10 NUE/ 1.660 IJ RING GAUGE NIM1.660" 10 NUE/ 1.660 IJ PLUG GAUGE NIM1.315" 10 NUE/ 1.315 IJ RING GAUGE NIM1.315" 10 NUE/ 1.315 IJ PLUG GAUGE NIM1.050" 10 NUE RING GAUGE NIM1.050" 10 NUE PLUG GAUGE NIM4-1/2" 8 EUE RING GAUGE NIST4-1/2" 8 EUE PLUG GAUGE NIST4 " 8 EUE RING GAUGE NIST4" 8 EUE PLUG GAUGE NIST3-1/2" EUE RING GAUGE NIST3-1/2" EUE PLUG GAUGE NIST2-7/8" EUE RING GAUGE NIST2-7/8" EUE PLUG GAUGE NIST2-3/8" EUE RING GAUGE NIST2-3/8" EUE PLUG GAUGE NIST1.900" 10 EUE/ 2.063 IJ RING GAUGE NIM1.900" 10 EUE/ 2.063 IJ PLUG GAUGE NIM1.660" 10 EUE RING GAUGE NIM1.660" 10 EUE PLUG GAUGE NIM1.315" 10 EUE RING GAUGE NIM1.315" 10 EUE PLUG GAUGE NIM1.050" 10 EUE, 1.315 IJ RING GAUGE NIM1.050" 10 EUE, 1.315 IJ PLUG GAUGE



API 5B Line Pipe 3/4″ TPF

6" 8 LINE PIPE RING GAUGE6" 8 LINE PIPE PLUG GAUGE5" 8 LINE PIPE RING GAUGEE5" 8 LINE PIPE PLUG GAUGE4" 8 LINE PIPE RING GAUGE4" 8 LINE PIPE PLUG GAUGE3-1/2" 8 LINE PIPE RING GAUGE3-1/2" 8 LINE PIPE PLUG GAUGE3" 8 LINE PIPE RING GAUGE3" 8 LINE PIPE PLUG GAUGE2-1/2" X 8 LINE PIPE RING GAUGE2-1/2" X 8 LINE PIPE PLUG GAUGE2" X 11.5 LINE PIPE RING GAUGE2" 11.5 LINE PIPE PLUG GAUGE1-1/2" X 11.5 LINE PIPE RING GAUGE NIM1-1/2" X 11.5 LINE PIPE PLUG GAUGE NIM1-1/4" X 11.5 LINE PIPE RING GAUGE NIM1-1/4" X 11.5 LINE PIPE PLUG GAUGE NIM1" 11.5 LINE PIPE RING GAUGE1" 11.5 LINE PIPE PLUG GAUGE3/4" 14 LINE PIPE RING GAUGE3/4" 14 LINE PIPE PLUG GAUGE1/2" 14 LINE PIPE RING GAUGE1/2" 14 LINE PIPE PLUG GAUGE3/8" 18 LINE PIPE RING GAUGE3/8" 18 LINE PIPE PLUG GAUGE1/4" 18 LINE PIPE RING GAUGE1/4" 18 LINE PIPE PLUG GAUGE1/8" 27 LINE PIPE RING GAUGE1/8" 27 LINE PIPE PLUG GAUGE



API 5B Buttress Casing

13-3/8" API BUTTRESS CASING RING GAUGE13-3/8" API BUTTRESS CASING PLUG GAUGE11-3/4" API BUTTRESS CASING RING GAUGE11-3/4" API BUTTRESS CASING PLUG GAUGE10-3/4" API BUTTRESS CASING RING GAUGE10-3/4" API BUTTRESS CASING PLUG GAUGE9-5/8" API BUTTRESS CASING RING GAUGE9-5/8" API BUTTRESS CASING PLUG GAUGE8-5/8" API BUTTRESS CASING RING GAUGE8-5/8" API BUTTRESS CASING PLUG GAUGE7-5/8" API BUTTRESS CASING RING GAUGE7-5/8" API BUTTRESSS CASING PLUG GAUGE7" API BUTTRESS CASING RING GAUGE NIM7" API BUTTRESS CASING PLUG GAUGE NIM6-5/8" API BUTTRESS CASING RING GAUGE NIM6-5/8" API BUTTRESS CASING PLUG GAUGE NIM5.5" API BUTTRESS CASING RING GAUGE NIST5.5" API BUTTRESS CASING PLUG GAUGE NIST5" API BUTTRESS CASING RING GAUGE NIST5" API BUTRESS CASING PLUG GAUGE NIST4.5" API BUTTRESS CASING RING GAUGE NIST4.5" API BUTTRESS CASING PLUG GAUGE NIST NEWBUTTRESS TRIANGLE STAMPADJUSTABLE STRAP-STYLE BUTTRESS STAMP HOLDER



API 5B 8 Round Casing

13-3/8" 8 ROUND LONG CASING RING GAUGE13-3/8" 8 ROUND SHORT CASING RING GAUGE13-3/8" 8 ROUND CASING PLUG GAUGE11-3/4" 8 ROUND LONG CASING RING GAUGE - NON NIST11-3/4" 8 ROUND SHORT CASING RING GAUGE - NON NIST11-3/4" 8 ROUND CASING PLUG GAUGE - NON NIST10-3/4" 8 ROUND LONG CASING RING GAUGE NIM10-3/4" 8 ROUND SHORT CASING RING GAUGE NIM10-3/4" 8 ROUND CASING PLUG GAUGE NIM 28.2 LBS9-5/8" 8 ROUND LONG CASING RING GAUGE NIST 31 LBS9-5/8" 8 ROUND SHORT CASING RING GAUGE NIST 25.8 LBS9-5/8" 8 ROUND CASING PLUG GAUGE NIST 25.6 LBS8-5/8" 8 ROUND LONG CASING RING GAUGE NIST 21.2 LBS8-5/8" 8 ROUND SHORT CASING RING GAUGE NIST 20.8 LBS8-5/8" 8 ROUND CASING PLUG GAUGE NIST 22 LBS7-5/8" 8 ROUND LONG CASING RING GAUGE NIST7-5/8" 8 ROUND SHORT CASING RING GAUGE NIST 16.4 LBS7-5/8" 8 ROUND CASING PLUG GAUGE NIST7" 8 ROUND LONG CASING RING GAUGE NIST..16.0 LBS7" 8 ROUND SHORT CASING RING GAUGE NIST 14 LBS7" 8 ROUND CASING PLUG GAUGE NIST 21 LBS6-5/8" 8 ROUND LONG CASING RING GAUGE NIST 17 LBS6-5/8" 8 ROUND SHORT CASING RING GAUGE NIST6-5/8" 8 ROUND CASING PLUG GAUGE NIST5.5" 8 ROUND LONG CASING RING GAUGE NIST 13 LBS5.5" 8 ROUND SHORT CASING RING GAUGE NIST 8.8 LBS5.5" 8 ROUND CASING PLUG GAUGE NIST 10.8 LBS5" 8 ROUND LONG CASING RING GAUGE NIST 10.2 LBS5" 8 ROUND SHORT CASING RING GAUGE NIST 8.2 LBS5" 8 ROUND CASING PLUG GAUGE NIST 9.2 LBS4.5" 8 ROUND LONG CASING RING GAUGE NIST 7.8 LBS4.5" 8 ROUND SHORT CASING RING GAUGE NIST 4.2 LBS4.5" 8 ROUND CASING PLUG GAUGE NIST WEIGHT 5.2 LBS



API 5B Line Pipe

6" 8 LINE PIPE RING GAUGE6" 8 LINE PIPE PLUG GAUGE5" 8 LINE PIPE RING GAUGE5" 8 LINE PIPE PLUG GAUGE4" 8 LINE PIPE RING GAUGE4" 8 LINE PIPE PLUG GAUGE3-1/2" 8 LINE PIPE RING GAUGE3-1/2" 8 LINE PIPE PLUG GAUGE3" 8 LINE PIPE RING GAUGE3" 8 LINE PIPE PLUG GAUGE2-1/2" X 8 LINE PIPE RING GAUGE2-1/2" X 8 LINE PIPE PLUG GAUGE2" X 11.5 LINE PIPE RING GAUGE2" 11.5 LINE PIPE PLUG GAUGE1-1/2" X 11.5 LINE PIPE RING GAUGE NIM1-1/2" X 11.5 LINE PIPE PLUG GAUGE NIM1-1/4" X 11.5 LINE PIPE RING GAUGE NIM1-1/4" X 11.5 LINE PIPE PLUG GAUGE NIM1" 11.5 LINE PIPE RING GAUGE1" 11.5 LINE PIPE PLUG GAUGE3/4" 14 LINE PIPE RING GAUGE3/4" 14 LINE PIPE PLUG GAUGE1/2" 14 LINE PIPE RING GAUGE1/2" 14 LINE PIPE PLUG GAUGE3/8" 18 LINE PIPE RING GAUGE3/8" 18 LINE PIPE PLUG GAUGE1/4" 18 LINE PIPE RING GAUGE1/4" 18 LINE PIPE PLUG GAUGE1/8" 27 LINE PIPE RING GAUGE1/8" 27 LINE PIPE PLUG GAUGE



API 5B Casing Tubing Line Pipe Buttress

6" 8 LINE PIPE RING GAUGE6" 8 LINE PIPE PLUG GAUGE5" 8 LINE PIPE RING GAUGE5" 8 LINE PIPE PLUG GAUGE4" 8 LINE PIPE RING GAUGEAPI 5B 8 ROUND CASING13-3/8" 8 ROUND LONG CASING RING GAUGE13-3/8" 8 ROUND SHORT CASING RING GAUGE13-3/8" 8 ROUND CASING PLUG GAUGE11-3/4" 8 ROUND LONG CASING RING GAUGE - NON NIST11-3/4" 8 ROUND SHORT CASING RING GAUGE - NON NISTAPI 5B BUTTRESS CASING13-3/8" API BUTTRESS CASING RING GAUGE13-3/8" API BUTTRESS CASING PLUG GAUGE11-3/4" API BUTTRESS CASING RING GAUGE11-3/4" API BUTTRESS CASING PLUG GAUGE10-3/4" API BUTTRESS CASING RING GAUGEAPI 5B BUTTRESS CASING6" 8 LINE PIPE RING GAUGE6" 8 LINE PIPE PLUG GAUGE5" 8 LINE PIPE RING GAUGE5" 8 LINE PIPE PLUG GAUGE4" 8 LINE PIPE RING GAUGE4-1/2" 8 NUE RING GAUGE NIST4-1/2" 8 NUE PLUG GAUGE NIST4" 8 NUE RING GAUGE NIST4" 8 NUE PLUG GAUGE NIST


API 7-2 Rotary Shouldered Thread Gauges

Northern Gauge manufacturers API 7-2 working gauges. All gauges include a certificate of calibration that has
traceability to an API certified reference master.* We have the most extensive API 7-2 reference masters on hand
in Canada. Our calibrations are completed at our ISO 17025 accredited lab with complete NIST or equivalent
traceable equipment.

     

We keep in stock most connections for Regular Rotary Shouldered Connections, Internal Flush (IF), Numbered Connections (NC), Full Hole (FH), Hughes External Flush (HEF), H90 & PAC connections.

     

If you are inspecting a box connection or internal thread then you will need a plug gage in order to inspect the
part properly. If you are inspecting a pin connection or external thread then you will need a ring gage to inspect
the part properly. If you require assistance with how to gage your part, please check out our tech tip section
(How to use API 7-2 gauges)

     

Not quite sure what gauge you need, please contact our sales team to help with determine your needs. Email sales@northerngauge.com or Phone 780.628.0844

     

*Some non-preferred connections do not have calibration against Masters

     

NC16 PLUG GAUGE NON NISTNC16 RING GAUGE NON-NISTNC23 PLUG GAUGE SET NON-NISTNC23 RING GAUGE NON-NISTNC26, 2-3/8" IF, PLUG GAUGE NISTNC26, 2-3/8" IF, RING GAUGE NISTNC31, 2-7/8" IF PLUG GAUGE NISTNC31, 2-7/8" IF RING GAUGE NISTNC35 PLUG GAUGE NIMNC35 RING GAUGE NIMNC38 3-1/2" IF PLUG GAUGE NISTNC38 3-1/2 IF RING GAUGE NISTNC40 4" FH PLUG GAUGE (FULL HOLE) NISTNC40 4" FH RING GAUGE (FULL HOLE) NIST1NC44 PLUG GAUGE NIMNC44 RING GAUGE NIMNC46 or 4" IF or 4-1/2" XH PLUG GAUGE NISTNC46 or 4" IF or 4-1/2" XH RING GAUGE NISTNC50 or 4.5" IF or 5" XH PLUG GAUGE NISTNC50 or 4."" IF or 4.5" XH RING GAUGE NISTNC 56 PLUG GAUGE NIMNC 56 RING GAUGE NIM5" IF PLUG GAUGE NON-NIST5" IF RING GAUGE NON-NIST


API 11B Sucker/Polish Rod

P8 1-1/8" GO PIN THREAD RING GAUGEP8 1" GO PIN THREAD RING GAUGEP8 7/8" GO PIN THREAD RING GAUGEP8 3/4" GO PIN THREAD RING GAUGEP8 5/8" GO PIN THREAD RING GAUGEP8 1/2" GO PIN THREAD RING GAUGEP7 1-1/8" GO PIN THREAD PLUG GAUGEP7 1" GO PIN THREAD PLUG GAUGEP7 7/8" GO PIN THREAD PLUG GAUGEP7 3/4" GO PIN THREAD PLUG GAUGEP7 5/8" GO PIN NOGO THREAD PLUG GAUGEP7 1/2" GO PIN THREAD PLUG GAUGEP6 1-1/8" NOGO PIN THREAD RING GAUGEP6 1" NOGO PIN THREAD RING GAUGEP6 7/8" NOGO PIN THREAD RING GAUGEP6 7/8" NOGO PIN THREAD RING GAUGEP6 3/4" NOGO PIN THREAD RING GAUGEP6 5/8" NOGO PIN THREAD RING GAUGEP6 1/2" NOGO PIN THREAD RING GAUGEP5 1-1/8" NOGO PIN THREAD PLUG GAUGEP5 1-1/8" NOGO PIN THREAD PLUG GAUGEP5 1-1/8" NOGO PIN THREAD PLUG GAUGEP5 1-1/8" NOGO PIN THREAD PLUG GAUGEP5 1-1/8" NOGO PIN THREAD PLUG GAUGEP5 1" NOGO PIN THREAD PLUG GAUGEP5 7/8" NOGO PIN THREAD PLUG GAUGEP5 3/4" NOGO PIN THREAD PLUG GAUGEP5 5/8" NOGO PIN THREAD PLUG GAUGEP5 1/2" NOGO PIN THREAD PLUG GAUG


API 6A BPV

1-1/4" 4 BPV 90° LH GO PLUG GAUGE1-1/4" 4 BPV 90° LH NOGO PLUG GAUGE1-1/2"-4 BPV 90° LH GO PLUG GAUGE1-1/2"-4 BPV 90° LH NOGO PLUG GAUGE1-1/2"-4 BPV 90° LH GO RING GAUGE1-1/2"-4 BPV 90° LH NOGO RING GAUGE2-1/32"-4 BPV 90° LH GO PLUG GAUGE2-1/32"-4 BPV 90° LH GO PLUG GAUGE2-1/32"-4 BPV 90° LH NOGO PLUG GAUGE2- 1/32"-4 BPV 90° LH GO RING GAUGE2- 1/32"-4 BPV 90° LH NOGO RING GAUGE2-31/64"-4 BPV 90° LH GO PLUG GAUGE2-31/64"-4 BPV 90° LH NOGO PLUG GAUGE2-31/64"-4 BPV 90° LH GO RING GAUGE2-31/64" 4 BPV 90° LH NOGO RING GAUGE3-1/32"-4 BPV 90° LH GO PLUG GAUGE3-1/32"-4 BPV 90° LH NOGO PLUG GAUGE3-1/32" - 4 BPV 90° LH GO RING GAUGE3-1/32" -4 BPV 90° LH NOGO RING GAUGE3-17/32"-4 BPV 90° LH GO PLUG GAUGE3-17/32"-4 BPV 90° LH NOGO PLUG GAUGE3-17/32"-4 BPV 90° LH GO RING GAUGE3-17/32"-4 BPV 90° LH NOGO RING GAUGE3-17/32"-4 BPV 90° LH NOGO RING GAUGE3-17/32"-4 BPV 90° LH NOGO RING GAUGE3-17/32"-4 BPV 90° LH NOGO RING GAUGE3-63/64"-4 BPV 90° LH GO PLUG GAUGE3-63/64"-4 BPV 90° LH NOGO PLUG GAUGE


API 5A – Sharp ‘V’ Thread

1.5" / 1.9" 11.5TPI SHARP V PLUG NUE-NUT-NON UPSET1.5" / 1.9" 11.5TPI SHARP V RING NUE-NUT-NON UPSET2" / 2.375" 11.5TPI SHARP V PLUG NUE-NUT-NON UPSET2" / 2.375" 11.5TPI SHARP V RING NUE-NUT-NON UPSET2.5" / 2.875" 11.5TPI SHARP V PLUG NUE-NUT-NON UPSET2.5" / 2.875" 11.5TPI SHARP V RING NUE-NUT-NON UPSET2.5" / 2.875" 11.5TPI SHARP V RING NUE-NUT-NON UPSET3" / 3.5" 11.5TPI SHARP V PLUG NUE-NUT-NON UPSET3" / 3.5" 11.5TPI SHARP V RING NUE-NUT-NON UPSET3" / 3.5" 11.5TPI SHARP V RING NUE-NUT-NON UPSET3.5" / 4" 10TPI SHARP V PLUG NUE-NUT-NON UPSET3.5" / 4" 10TPI SHARP V RING NUE-NUT-NON UPSET4" / 4.5" 10TPI SHARP V PLUG NUE-NUT-NON UPSET