Power Section Specification
475-5683
4.75" 5:6 Lobes 8.3 Stages
Rotor Specifications
Overall Length 229.40 in
Avg. Diameter 2.502 in
Contour Length 222.15 in
Eccentricity 0.207 in
Major Diameter 2.916 in
Head Diameter 3.125 in
Head Length 7.25 in
Weight 323 lb
Thread Form 2 3/8" HEF
Stator Specifications
Overall Length 242.59 in
Tube OD 4.75 in
Contour Length 223.59 in
Tube ID 3.750 in
Rubber Cut-back
Side 1: 8.00 in
Side 2: 11.00 in
Weight 501 lb
Material Alloy Steel
Performance Specifications
Flow Range 100-275 GPM
Rev per Unit Volume 0.99 Rev/Gal
Speed Range 99-273 RPM
No Load Pressure Loss 98 psi
  POB XTH PRR
Max Rec Press 1,830 psi 2,010 psi 1,830 psi
Torque @ Max Press 5,070 ft-lbs 5,580 ft-lbs 5,070 ft-lbs
Stall Pressure 2,740 psi 3,020 psi 2,740 psi
Stall Torque 7,610 ft-lbs 8,370 ft-lbs 7,610 ft-lbs
Stator Minors and Fit (in) at 70°F
  PRR POB XTH
Group Minor Fit Minor Fit Minor Fit
0 2.501 0.002 2.502 0.001
4 2.522 -0.019 2.522 -0.019 2.522 -0.019
7 2.550 -0.047 2.550 -0.047
Reline Lengths (in) Max 243 Min 237 Alternate Stator OD (in): 5.000 / -
Torque
Differential Pressure (psi) 0 1,000 2,000 Torque (ft-lb) 0
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 2,000 Mechanical Power (hp) 0
Torque
Differential Pressure (psi) 0 500 1,000 1,500 2,000 2,500 Torque (ft-lb) 0 2,000 4,000 6,000
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
100 GPM 188 GPM 275 GPM Differential Pressure (psi) 0 500 1,000 1,500 2,000 2,500 Speed (RPM) 0 100 200 300
Mechanical Power
100 GPM 188 GPM 275 GPM Differential Pressure (psi) 0 500 1,000 1,500 2,000 2,500 3,000 Mechanical Power (hp) 0 100 200 300
©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.