HRU U-Seal
Style HRU u-seals are precision molded from 80 Durometer Buna-N rubber. Sizes include those found in Army-Navy spec. AN6226 and narrow cross-section sizes found in J.I.C. cylinders and the popularly termed “Huva Cup”.
| SEAL INFORMATION | |
| MATERIAL | 80A BUNA-N RUBBER 90A FLUOROCARBON |
| TEMPERATURE RANGE | BUNA-N: -40° TO +250° F FC: -20° TO +400° F |
| PRESSURE RANGE | BUNA-N: 0 TO 1,250 PSI FC: 0 TO 2,000 PSI |
| SPEED | 3 FT/SEC |
| Part Number | A Nom.ID | B Nom.OD | C Nom.Ht |
| 3/32″ C/S | |||
| HRU09-0.12-09 HRU09-0.18-09 HRU09-0.25-09 HRU09-0.31-09 HRU09-0.43-09 HRU09-0.50-09 HRU09-0.56-09 HRU09-0.62-09 HRU09-0.68-09 HRU09-0.75-09 | 1/8 3/16 1/4 5/16 7/16 1/2 9/16 5/8 11/16 3/4 | 5/16 3/8 7/16 1/2 5/8 11/16 3/4 13/16 7/8 15/16 | 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 |
| 1/8″ C/S | |||
| HRU12-0.18-12 HRU12-0.25-12 HRU12-0.37-12 HRU12-0.43-12 HRU12-0.50-12 HRU12-0.50-12V HRU12-0.56-12 HRU12-0.62-12 HRU12-0.62-12V HRU12-0.68-12 HRU12-0.75-12 HRU12-0.75-12V HRU12-0.81-12 HRU12-0.87-12 HRU12-0.87-12V HRU12-1.00-12 HRU12-1.00-12V HRU12-1.12-12 HRU12-1.25-12 HRU12-1.37-12 HRU12-1.50-12 HRU12-1.75-12 HRU12-2.00-12 | 3/16 1/4 3/8 7/16 1/2 1/2 9/16 5/8 5/8 11/16 3/4 3/4 13/16 7/8 7/8 1 1 1-1/8 1-1/4 1-3/8 1-1/2 1-3/4 2 | 7/16 1/2 5/8 11/16 3/4 3/4 13/16 7/8 7/8 15/16 1 1 1-1/16 1-1/8 1-1/8 1-1/4 1-1/4 1-3/8 1-1/2 1-5/8 1-3/4 2 2-1/4 | 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 |
| 5/32″ C/S | |||
| HRU15-0.50-15 HRU15-0.68-15 HRU15-0.75-15 HRU15-0.93-15 HRU15-1.00-15 HRU15-1.00-15V HRU15-1.06-15 HRU15-1.18-15 HRU15-1.18-15V HRU15-1.25-15 HRU15-1.31-15 HRU15-1.37-15 HRU15-1.37-15V HRU15-1.43-15 HRU15-1.50-15 | 1/2 11/16 3/4 15/16 1 1 1-1/16 1-3/16 1-3/16 1-1/4 1-5/16 1-3/8 1-3/8 1-7/16 1-1/2 | 13/16 1 1-1/16 1-1/4 1-5/16 1-5/16 1-3/8 1-1/2 1-1/2 1-9/16 1-5/8 1-11/16 1-11/16 1-3/4 1-13/16 | 5/32 5/32 5/32 5/32 5/32 5/32 5/32 5/32 5/32 5/32 5/32 5/32 5/32 5/32 5/32 |
| 3/16″ C/S | |||
| HRU18-0.62-18 HRU18-0.75-18 HRU18-1.00-18 HRU18-1.25-18 HRU18-1.37-18 HRU18-1.37-18V HRU18-1.50-18 HRU18-1.62-18 HRU18-1.62-18V HRU18-1.75-18 HRU18-1.75-18V HRU18-1.87-18 HRU18-2.00-18 HRU18-2.00-18V HRU18-2.12-18 HRU18-2.12-18V HRU18-2.25-18 HRU18-2.37-18 HRU18-2.50-18 HRU18-2.62-18 HRU18-2.87-18 HRU18-3.00-18 HRU18-3.25-18 HRU18-3.37-18 | 5/8 3/4 1 1-1/4 1-3/8 1-3/8 1-1/2 1-5/8 1-5/8 1-3/4 1-3/4 1-7/8 2 2 2-1/8 2-1/8 2-1/4 2-3/8 2-1/2 2-5/8 2-7/8 3 3-1/4 3-3/8 | 1 1-1/8 1-3/8 1-5/8 1-3/4 1-3/4 1-7/8 2 2 2-1/8 2-1/8 2-1/4 2-3/8 2-3/8 2-1/2 2-1/2 2-5/8 2-3/4 2-7/8 3 3-1/4 3-3/8 3-5/8 3-3/4 | 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 |
| 7/32″ C/S | |||
| HRU21-2.50-21 HRU21-2.50-21V HRU21-2.56-21 HRU21-2.75-21 HRU21-2.81-21 HRU21-2.81-21V HRU21-3.00-21 HRU21-3.00-21V HRU21-3.06-21 HRU21-3.31-21 | 2-1/2 2-1/2 2-9/16 2-3/4 2-13/16 2-13/16 3 3 3-1/16 3-5/16 | 2-15/16 2-15/16 3 3-3/16 3-1/4 3-1/4 3-7/16 3-7/16 3-1/2 3-3/4 | 7/32 7/32 7/32 7/32 7/32 7/32 7/32 7/32 7/32 7/32 |
| 1/4″ C/S | |||
| HRU25-1.37-25 HRU25-1.75-25 HRU25-2.00-25 HRU25-2.50-25 HRU25-2.75-25 HRU25-2.75-25V HRU25-3.50-25 HRU25-3.50-25V HRU25-3.75-25 HRU25-4.00-25 HRU25-4.00-25V HRU25-4.50-25 HRU25-4.50-25V HRU25-4.75-25 HRU25-5.50-25 HRU25-5.50-25V HRU25-5.50-37 | 1-3/8 1-3/4 2 2-1/2 2-3/4 2-3/4 3-1/2 3-1/2 3-3/4 4 4 4-1/2 4-1/2 4-3/4 5-1/2 5-1/2 5-1/2 | 1-7/8 2-1/4 2-1/2 3 3-1/4 3-1/4 4 4 4-1/4 4-1/2 4-1/2 5 5 5-1/4 6 6 6 | 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/4 3/8 |
| 9/32″ C/S | |||
| HRU28-4.43-28 HRU28-4.43-28V HRU28-4.56-28 HRU28-5.00-28 HRU28-5.00-28V HRU28-5.43-28 HRU28-5.43-28V HRU28-6.43-28 | 4-7/16 4-7/16 4-9/16 5 5 5-7/16 5-7/16 6-7/16 | 5 5 5-1/8 5-9/16 5-9/16 6 6 7 | 9/32 9/32 9/32 9/32 9/32 9/32 9/32 9/32 |
| 5/16″ C/S | |||
| HRU31-2.87-31 HRU31-4.37-31 HRU31-5.37-31 HRU31-5.37-31V HRU31-5.50-31 HRU31-5.50-31V HRU31-6.37-31 HRU31-6.37-31V HRU31-7.37-31 HRU31-7.37-31V | 2-7/8 4-3/8 5-3/8 5-3/8 5-1/2 5-1/2 6-3/8 6-3/8 7-3/8 7-3/8 | 3-1/2 5 6 6 6-1/8 6-1/8 7 7 8 8 | 5/16 5/16 5/16 5/16 5/16 5/16 5/16 5/16 5/16 5/16 |
| 11/32″ C/S | |||
| HRU34-9.31-34 HRU34-9.31-34V | 9-5/16 9-5/16 | 10 10 | 11/32 11/32 |
| 3/8″ C/S | |||
| HRU37-2.50-37 HRU37-2.75-37 HRU37-9.25-37 HRU37-11.25-37 | 2-1/2 2-3/4 9-1/4 11-1/4 | 3-1/4 3-1/2 10 12 | 3/8 3/8 3/8 3/8 |
| 13/32″ C/S | |||
| HRU40-13.18-40 | 13-3/16 | 14 | 13/32 |
| 1/2″ C/S | |||
| HRU50-9.00-50 HRU50-11.00-50 | 9 11 | 10 12 | 1/2 1/2 |