H31-3.87
H O-Ring Loaded Urethane U-Seal, 3-7/8 X 4-1/2 X 5/16, Standard Style
Part #:
H31-3.87
Min. Order Qty: 1
Brand: HPSI
HPSI
The H O-Ring Loaded U-Seal is molded from tough, abrasion-resistant polyurethane for reliable hydraulic sealing in dynamic applications. An integrated O-ring expander maintains consistent sealing force across the operating pressure range while enhancing low-pressure sealing performance to help prevent leakage.
The Standard profile features equal seal height and cross section, creating a square seal geometry.It utilizes the Type D sealing lip, making it the standard choice for general-purpose hydraulic sealing applications.
Typical Part Number: H25-2.50
| Cross Section | : | 5/16 in |
| Height | : | 5/16 in |
| Inside Diameter | : | 3-7/8 in |
| Lip Style | : | Standard |
| Material | : | Urethane/Nitrile |
| Outside Diameter | : | 4-1/2 in |
| Part Number | : | (Prefix)(C/S)-(ID)-(H) |
| Pressure Range | : | 0 TO 5,000 PSI |
| Temperature Range | : | -65° to 220°F |
- Square profile provides balanced sealing performance
- Type D sealing lip delivers reliable hydraulic sealing
- O-ring expander maintains consistent sealing force across the pressure range
- Enhances low-pressure sealing to help prevent leakage ("weeping")
- Abrasion-resistant polyurethane offers long service life
