Shaft Seal, AS-1521, 3/4″ Shaft, Buna-N, PS-201 | AS-1521
$8.91
| Manufacturer part number | AS-1521 |
| UPC (GTIN) | 601402123818 |
| Returns | 30-day returns – see our returns policy |
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💧 Shaft Seal, AS-1521, 3/4″ Shaft, Buna-N, PS-201
Made by Aladdin, manufacturer part number AS-1521. If your old part carries one of the cross-reference numbers further down, this is listed as its alternative.
🔄 Cross-reference part numbers
These part numbers are listed as alternatives for this part.
| Brand | Part number |
|---|---|
| Generic | 201V |
| Generic | AS-066H |
3/4″ Buna-N PS-201 Shaft Seal | Model AS-1521
Product Overview
We supply this professional-grade shaft seal featuring Buna-N elastomer construction for 3/4″ pump shafts. This seal is engineered to PS-201 specifications, providing reliable sealing performance in demanding pool and spa applications.
Key Features and Benefits
- Precision 3/4″ shaft design
- High-quality Buna-N elastomer
- PS-201 performance standard
- Enhanced spring assembly
- Improved seal geometry
- Optimized wear resistance
- Professional-grade construction
Technical Specifications
| Specification | Detail |
|---|---|
| Model | AS-1521 |
| Standard | PS-201 |
| Shaft Size | 3/4 inch |
| Elastomer Type | Buna-N |
| Face Materials | Carbon/Ceramic |
| Spring Material | Stainless Steel |
| Maximum Temperature | 225°F (107°C) |
| Maximum Pressure | 150 PSI |
| Rotation | Bi-directional |
| Design Type | Medium Duty |
🔧 Parts and fittings for this
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
 |
Tool, Pool Tool, O-Ring Pick | 134 | 18 in stock | $11.23 | Add to cart |
 |
Shaft Seal, 3/4" Shaft, Viton 201 | 201V | 186 in stock | $12.03 | Add to cart |
 |
Shaft Seal, 201, 3/4" Shaft, Buna | AS-066H | 101 in stock | $7.22 | Add to cart |
 |
Shaft Seal, PS-1902, 3/4" Shaft, Silicon Carbide PS-201 | PS-1902 | 23 in stock | $75.48 | Add to cart |
Installation and Maintenance
Professional installation ensures optimal performance. The ceramic seat must be installed with uniform pressure, and both sealing faces must be thoroughly cleaned before assembly. Proper shaft preparation and alignment are essential for maximum seal life.
Compatibility
Engineered for use with:
- 3/4″ pump shafts
- Standard pump configurations
- Medium-duty applications
- Common pool equipment
Performance Features
Designed to deliver:
- Reliable sealing force
- Good chemical resistance
- Enhanced durability
- Consistent performance
- Extended service life
- Smooth operation
Note: Always verify shaft dimensions and seal compatibility with your specific pump model before installation
| Pump Model | Americana, Bronze, DJ Series, Dura-Glas II, Dura-Jet, Dyna-Glas/Dyna-Max, Dyna-Glas/Dyna-Max After June 2000, Dyna-Pro, Dyna-Pro E, Dyna-Wave, Hydro Pump, IntelliFloXF VSP, JS Series, JT Series, JW Series After 2001, JWA Series After 2001, L Series, LTH Series, LTPH Series, Magnum, Max-E-Glas II/Dura-Glas II, Max-E-Pro, Max-E-ProXF VS, MaxFlo, RC, SLR Series, Sprint 2000, Super II, Super Pump, SuperFlo VST, TheraFlo, TheraMax |
|---|---|
| Shaft Seal Head Type | A |
| Pump Manufacturer | American Products/Pentair, Astral, Jacuzzi, PacFab/Pentair, Pentair, Sta-Rite/BWG, Sta-Rite/Pentair, Sundance Spas |
| Quality/Material | Good – Buna Graphitic Plastic |
| Shaft Size | 3/4" |
| Seal Outside Diameter | 1-11/32"dia |
| Seal Height | 13/16" |
| Mating Ring Diameter | 1-3/8"dia |
| Mating Ring Thickness | 13/32" |
| US Seal Basic Equivalent | PS-201 |
| H Part# | 35-423-1065 |