Tapered Thread Functional Size

The MRP-5000 series of gages use hardened and ground thread rolls to inspect functional size of tapered threaded connections. The MRP-5000 gages are adjustable within a size range and have interchangeable thread rolls for inspection of all API thread forms.

Gages require setting before use. Unless otherwise noted, standards and thread rolls are sold separately.

Gagemaker-MRP-5000-on-Pin

MRP® Tapered Thread Functional Size Gages

The gages must be preset to size using one of a variety of setting methods available. Refer to the setting standards below. Please specify preferred taper arms (3/4” or 1” TPF) when ordering. Thread rolls and standards are sold separately.

External/InternalRangeResolutionDescriptionModel
External1” - 2¼”.0001”External Functional Roll Gage for Tubing & Casing, 1” - 2¼”, Single Taper Only*MRP-501
Internal1” - 2¼”.0001”Internal Functional Roll Gage for Tubing & Casing, 1” - 2¼”, Single Taper Only*MRP-502
External/Internal2⅜” - 5½”.0005”External/Internal Functional Roll Gage for Tubing & Casing, 2⅜” - 5½"MRP-5001
External/Internal2⅜” - 5½”.0005”External/Internal Functional Roll Gage with Metric Indicator for Tubing & Casing, 2⅜” - 5½"MRP-5001-M
External/Internal2⅜” - 13⅜”.0005”External/Internal Functional Roll Gage for Tubing & Casing, 2⅜” - 13⅜”MRP-5002
External/Internal2⅜” - 13⅜”.0005”External/Internal Functional Roll Gage with Metric Indicator for Tubing & Casing, 2⅜” - 13⅜”MRP-5002-M
External/Internal13⅜” - 20”.0005”External/Internal Functional Roll Gage for Tubing & Casing, 13⅜” - 20”MRP-5003
External/Internal13⅜” - 20”.0005”External/Internal Functional Roll Gage with Metric Indicator for Tubing & Casing 13⅜” - 20”MRP-5003-M
External/Internal2⅜” - 9⅝”.0005”External/Internal Functional Roll Gage for Tubing & Casing, 2⅜” - 9⅝”MRP-5004
External/Internal2⅜” - 9⅝”.0005”External/Internal Functional Roll Gage with Metric Indicator for Tubing & Casing, 2⅜” - 9⅝”MRP-5004-M
---Upgrade MRP-5000 from old style to new styleUP-MRP-5000

*Please specify taper when ordering. Built to one specific taper. One taper per gage. Set of thread rolls included.

MRP® Thread Rolls

Connection TYPEExternal/InternalConnection SizeDescriptionModel
8 RoundBothAllMRP-5000 thread roll for all API 8 Round TubingTR-8R
10 RoundBothAllMRP-5000 thread roll for all API 10 Round TubingTR-10R
8V API Line PipeBothAllMRP-5000 thread roll for all 8 V API Line PipeTR-8LP
11½ V API Line PipeBothAllMRP-5000 thread roll for all 11½ V API Line PipeTR-11LP
External Buttress Casing, 16” - 20”External16” - 20”MRP-5000 thread roll for API External Buttress Casing, 16” - 20”TR-B10E
Internal Buttress Casing, 16” - 20”Internal16” - 20”MRP-5000 thread roll for Internal Buttress Casing, 16” - 20”TR-B10I
Buttress Casing, 4½” - 13⅜”Both4½” - 13⅜”MRP-5000 thread roll for API Buttress Casing, 4½” - 13⅜”TR-B75
---MRP-5000 blank thread roll setTR-BL

 

MRP® Tapered Thread Functional Size Frame Style Setting Standards

Box (Back) & Pin (Front) MRP® Frame Standards

Frame style setting standards are designed to preset the MRP® functional size gages for accurate inspection of threaded tubing and casing connections. These standards consist of a rigid, non-adjustable steel block precision machined to proper size to tolerances of ±.0003″.

Standards not listed may still be available via custom/special order. Please contact us directly for more information.

 

Tubing Connections Frame Standards

Connection SizeFrame Standard - BoxFrame Standard - Pin
2⅜” FSTD-238E-B5FSTD-238E-P5
2⅞” FSTD-278E-B5FSTD-278E-P5
3½”FSTD-312E-B5FSTD-312E-P5
4”FSTD-4E-B5FSTD-4E-P5
4½”FSTD-412E-B5FSTD-412E-P5

Connection SizeFrame Standard - BoxFrame Standard - Pin
2⅜” FSTD-238N-B5FSTD-238N-P5
2⅞” FSTD-278N-B5FSTD-278N-P5
3½”FSTD-312N-B5FSTD-312N-P5
4”FSTD-4N-B5FSTD-4N-P5
4½”FSTD-412N-B5FSTD-412N-P5
Casing Connections Frame Standards

Connection SizeFrame Standard - BoxFrame Standard - Pin
4½”FSTD-412B-B5FSTD-412B-P5
5” FSTD-5B-B5FSTD-5B-P5
5½”FSTD-512B-B5FSTD-512B-P5
6”FSTD-6B-B5FSTD-6B-P5
6⅝”FSTD-658B-B5FSTD-658B-P5
7”FSTD-7B-B5FSTD-7B-P5
7⅝”FSTD-758B-B5FSTD-758B-P5
8⅝”FSTD-858B-B5FSTD-858B-P5
9⅝”FSTD-958B-B5FSTD-958B-P5
10¾”FSTD-1034B-B5FSTD-1034B-P5
11¾”FSTD-1134B-B5FSTD-1134B-P5
13⅜”FSTD-1338B-B5FSTD-1338B-P5
16”FSTD-16B-B5FSTD-16B-P5
18⅝”FSTD-1858B-B5FSTD-1858B-P5
20”FSTD-20B-B5FSTD-20B-P5

Connection SizeFrame Standard - BoxFrame Standard - Pin
4½”FSTD-412L-B5FSTD-412L-P5
5” FSTD-5L-B5FSTD-5L-P5
5½”FSTD-512L-B5FSTD-512L-P5
6”FSTD-6L-B5FSTD-6L-P5
6⅝”FSTD-658L-B5FSTD-658L-P5
7”FSTD-7L-B5FSTD-7L-P5
7⅝”FSTD-758L-B5FSTD-758L-P5
8⅝”FSTD-858L-B5FSTD-858L-P5
9⅝”FSTD-958L-B5>P110 or FSTD-958L-B5FSTD-958L-P5
20”FSTD-20L-B5>JK55 or FSTD-20L-B5FSTD-20L-P5

Connection SizeFrame Standard - BoxFrame Standard - Pin
4½”– 9.50# FSTD-412B-9-B5FSTD-412B-9-P5
4½” – OtherFSTD-412B-O-B5FSTD-412B-O-P5
5” – 11.50# FSTD-5S-B5FSTD-5S-P5
5” – OtherFSTD-5S-O-B5FSTD-5S-O-P5
5½”FSTD-512S-B5FSTD-512S-P5
6⅝”FSTD-658S-B5FSTD-658S-P5
7” – 17.00# FSTD-7S-17-B5FSTD-7S-17-P5
7” – OtherFSTD-7S-O-B5FSTD-7S-O-P5
7⅝”FSTD-758S-B5FSTD-758S-P5
7⅝”FSTD-758S-B5FSTD-758S-P5
8⅝” - 24.00#FSTD-858S-24-B5FSTD-858S-24-P25
8⅝” - OtherFSTD-858S-O-B5FSTD-858S-O-P5
9⅝”FSTD-958S-B5>P110 or FSTD-958S-B5FSTD-958S-P5
10¾” - 32.75#FSTD-1034S-32-B5FSTD-1034S-32-P5
10¾” - OtherFSTD-1034S-O-B5>P110 or FSTD-1034S-O-B5FSTD-1034S-O-P5
11¾”FSTD-1134S-B5>P110 or FSTD-1134S-B5FSTD-1134S-P5
13⅜”FSTD-1338S-B5>P110 or FSTD-1338S-B5FSTD-1338S-P5
16”FSTD-16S-B5FSTD-16S-P5
18⅝”FSTD-1858S-B5FSTD-1858S-P5
20”FSTD-20S-B5>JK55 or FSTD-20S-B5FSTD-20S-P5

MRP® Replacement Parts

Part TypeResolutionDescription
SpringsMRP-5000 positioning springs (Set of 2)MRP5-10
WashersMRP-5000 retainer washers (Set of 2)MRP5-11
Lock ScrewsMRP-5000 lock screws (Set of 2)MRP5-12
Taper Arms¾” TPF MRP-5000 taper arms (Set of 2)MRP5-75T
Taper Arms1” TPF MRP-5000 taper arms (Set of 2)MRP5-10T
Set screwsMRP-5000 brass tip set screwsMRP-5000-BTSS