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The Haskel 28083‑1 is a precision-engineered retaining ring designed for HAA‑series and other Haskel gas boosters. It ensures secure positioning of check-valve components, preventing pin ejection under cyclic high-pressure conditions. Manufactured by Haskel to OEM standards, the ring delivers superior durability in demanding applications, maintaining seal integrity and system reliability. Its compact design allows easy installation during routine maintenance or rebuilds, helping reduce downtime. A small but critical spare, it's key to the safe, continued operation of gas booster and pump assemblies.
- Precisely-sized retaining ring for proper check-valve seating
- OEM-spec material for wear and fatigue resistance
- Factory quality for high-pressure gas booster applications
- Compact form factor, easy to install in confined spaces
- Helps secure internal parts under repeated pressure cycles
| Part Number | 28083‑1 |
| Type | Retaining/check valve insert ring |
| Compatible With | Haskel HAA‑series gas boosters & select pump models |
| Material | Hardened metal (steel alloy, Prop 65 warning) |
| Weight | ~1.0 lb / 0.45 kg (packaged) |
| Packaging | Individually bagged/new |
| NSN | 5325‑01‑205‑4366 (retaining ring) |