DELPHI FITTINGS
Product Overview
Standard Buna-N (Nitrile) O-rings specifically sized for the face groove on male SAE ORFS fittings. Suitable for common hydraulic fluids. This product is supplied for ORFS hydraulic sealing when the correct configuration, material, and mating components have been selected.
Key Features & Specifications
| Material | Buna-N (Nitrile) elastomer |
|---|---|
| Connection Configuration | SAE ORFS face seal |
| Reference Standard / System | SAE ORFS face-seal component |
| Plating & Finish | Cr3+ Trivalent Zinc Clear (ASTM B117 salt spray tested) |
| Reference Standard | SAE J1453 / ISO 8434-3 (O-Ring Face Seal Standard) |
| Sealing Mechanism | Elastomeric O-Ring Captive in Machined Face Groove Compressed Against Flat Mating Face |
Commonly Available Sizes (Part #OFS1 Series Series)
Delphi Fittings manufactures standard and custom dash sizes for Part OFS1 Series. Engineering specifications, dimensions, and thread/flange sizes are detailed below:
| Delphi Part # | ORFS Dash Size | Tube O.D. | Face Seal Thread | Hex Size |
|---|---|---|---|---|
| OFS1 Series-04 | -04 | 1/4" | 9/16-18 UN | 5/8" |
| OFS1 Series-06 | -06 | 3/8" | 11/16-16 UN | 3/4" |
| OFS1 Series-08 | -08 | 1/2" | 13/16-16 UN | 7/8" |
| OFS1 Series-10 | -10 | 5/8" | 1-14 UNS | 1-1/16" |
| OFS1 Series-12 | -12 | 3/4" | 1-3/16-12 UN | 1-1/4" |
| OFS1 Series-16 | -16 | 1" | 1-7/16-12 UN | 1-1/2" |
Need non-standard dash sizes, custom flange drops, special port configurations, or alternative material grades (AISI 316 Stainless / Brass)? Delphi manufactures custom components to client blueprints.
Specific Applications & Hydraulic Circuit Routing
Part OFS1 Series fittings provide reliable fluid power conveyance in demanding mobile and stationary equipment circuits:
- High-Vibration Mobile Equipment: Excavator booms, mining equipment, and hydrostatic drives where Part OFS1 Series prevents hydraulic weeping under intense shock loads.
- Zero-Clearance Manifold Assembly: Flat face design allows slip-in component replacement without springing or spreading rigid hydraulic tubes.
- Extreme Pressure Impulse Circuits: Elastomeric face seal remains 100% leak-free throughout repetitive thermal cycles and impulse spikes.
Installation & Assembly Guidance
- O-Ring Retention Inspection: Inspect the machined face groove to ensure the O-ring is properly seated and retained prior to mating.
- Face-to-Face Alignment: Bring the flat faces into parallel contact before hand-threading the swivel nut to avoid pinching the O-ring.
- Calibrated Torque Tightening: Tighten the nut to the specified SAE J1453 torque value using a calibrated torque wrench.
- Dual-Wrench Counter-Torque: Always hold the fitting body hex with a backup wrench while torquing the connection to prevent twisting.
Why Source Part OFS1 Series from Delphi Fittings?
- Strict Dimensional Precision: CNC machined to exacting tolerances for 100% interchangeability with North American and international systems.
- ASTM B117 Salt Spray Corrosion Protection: Electroplated with eco-friendly Cr3+ trivalent zinc clear for extended service life in harsh operating environments.
- 100% Thread & Seal Inspection: Every production batch undergoes strict optical and mechanical gauge inspection before packaging.
- Factory-Direct OEM Supply: Direct manufacturer pricing, full mill test reports (MTR), and ISO 9001:2015 quality assurance from Yuhuan, China.
Get a Quote for Part OFS1 Series - Buna N O-Ring for SAE ORFS Fittings
Direct OEM container-load and distributor replenishment pricing, complete material test reports (MTR), and inspection samples available upon inquiry. Connect with our engineering sales team for rapid quotations and delivery schedules.
Complementary & Mating Hydraulic Fittings
Commonly paired with Part OFS1 Series in hydraulic valve manifolds, power units, and industrial fluid power circuits:
