HS-338U90
90A Urethane Head Seal, 3-1/8 X 3-1/2 X 9/32
Part #:
HS-338U90
Min. Order Qty: 1
Brand: HPSI
HPSI
The HS-U90 Head Seal is a durable static head seal molded from 90A urethane and designed to replace the O-ring and back-up ring at the top of a hydraulic cylinder. Its symmetrical one-piece design helps prevent common installation and operating failures such as back-up blowout and pinched back-up rings, particularly in cylinders with high eccentricity or large extrusion gaps. The unitary construction also reduces installation damage and simplifies assembly.
| Bore Diameter | : | 3.500 in |
| Cross Section | : | 3/16 in |
| Dash Number | : | 338 |
| Height | : | 9/32 in |
| Inside Diameter | : | 3-1/8 in |
| Material | : | 90A Urethane |
| Outside Diameter | : | 3-1/2 in |
| Part Number | : | (Prefix)-(Dash#)-(90A Urethane) |
| Pressure Range | : | 0 TO 10,000 PSI |
| Temperature Range | : | -40° to 200°F |
- 90A urethane construction provides durable sealing performance
- Designed as a static hydraulic cylinder head seal
- Replaces an O-ring and back-up ring combination
- Symmetrical one-piece design simplifies installation
- Helps prevent back-up blowout
- Helps prevent pinched back-up rings
- Well suited for cylinders with high eccentricity or large extrusion gaps
- Unitary construction helps reduce installation damage
- Simplifies cylinder assembly
