Power Section Specification
287-5670
2.875" 5:6 Lobes 7.0 Stages
Rotor Specifications
Overall Length 110.12 in
Avg. Diameter 1.417 in
Contour Length 105.12 in
Eccentricity 0.119 in
Major Diameter 1.655 in
Head Diameter 1.690 in
Head Length 5.00 in
Weight 50 lb
Thread Form 1.150 -SPEC ACME HT
Stator Specifications
Overall Length 117.00 in
Tube OD 2.88 in
Contour Length 105.00 in
Tube ID 2.375 in
Rubber Cut-back
Side 1: 6.00 in
Side 2: 6.00 in
Weight 79 lb
Material Alloy Steel
Performance Specifications
Flow Range 60-120 GPM
Rev per Unit Volume 5.53 Rev/Gal
Speed Range 331-663 RPM
No Load Pressure Loss 122 psi
  XTH RTP
Max Rec Press 1,700 psi 1,540 psi
Torque @ Max Press 850 ft-lbs 770 ft-lbs
Stall Pressure 2,550 psi 2,320 psi
Stall Torque 1,270 ft-lbs 1,160 ft-lbs
Stator Minors and Fit (in) at 70°F
  RTP XTH
Group Minor Fit Minor Fit
0 1.407 0.010
4 1.418 -0.001
7 1.426 -0.009 1.429 -0.012
Reline Lengths (in) Max 117 Min 111 Alternate Stator OD (in): - / -
Torque
Differential Pressure (psi) 0 1,000 2,000 Torque (ft-lb) 0 1,000
Fit Increase
Change in Temperature (°F) 0 100 200 300 Fit Increase (in) 0
Speed
Differential Pressure (psi) 0 1,000 2,000 Speed (RPM) 0
Mechanical Power
Differential Pressure (psi) 0 1,000 2,000 Mechanical Power (hp) 0
Torque
Differential Pressure (psi) 0 500 1,000 1,500 2,000 Torque (ft-lb) 0 200 400 600 800 1,000
Fit Increase
Change in Temperature (°F) 0 50 100 150 200 250 300 350 Fit Increase (in) 0 0.02 0.04 0.06 0.08
Speed
60 GPM 90 GPM 120 GPM Differential Pressure (psi) 0 500 1,000 1,500 2,000 Speed (RPM) 0 200 400 600 800
Mechanical Power
60 GPM 90 GPM 120 GPM Differential Pressure (psi) 0 500 1,000 1,500 2,000 Mechanical Power (hp) 0 50 100
©2026 NOV. All rights reserved. Except as noted, all trademarks referenced in this document are trademarks of NOV. Performance curves describe theoretical performance with 175°F (79°C) water and are for reference only. Operational fit and drilling conditions will affect performance. Operation above maximum recommended limits will reduce life. Specification data are subject to change without notice.
PS App v.