DELPHI FITTINGS
Product Overview
Replacement nut for DIN 2353 Light (L) series compression fittings. Stainless steel. This product is supplied for corrosion-resistant metric tube connections when the correct configuration, material, and mating components have been selected.
Key Features & Specifications
| Material | AISI 316 / 316L Stainless Steel (ASTM A276 / ASTM A182 / CF8M) |
|---|---|
| Corrosion Protection | Full Chemical Passivation per ASTM A967 / AMS 2700; superior resistance to chlorides, pitting, and marine atmospheric corrosion |
| Operating Temperature | -425°F to +1200°F (-254°C to +649°C) for metal-to-metal seating (elastomeric seals: Viton FKM -20°F to +400°F) |
| Anti-Galling Notice | Thread lubricant or nickel-based anti-seize paste recommended on stainless threads to prevent cold-welding galling during make-up |
| Quality & Certification | ISO 9001:2015 certified; 100% heat-lot traceability with EN 10204 3.1 Mill Test Reports (MTR) upon request |
| Media Compatibility | Saltwater brine, corrosive acids, solvents, deionized water, sour crude oil, fuels, and industrial hydraulic fluids |
Commonly Available Sizes (Part #SS-5201L Series)
Delphi Fittings manufactures standard and custom dash sizes for Part SS-5201L in AISI 316 / 316L stainless steel. Precision dimensional and thread specifications are detailed below:
| Delphi Part # | Dash Size | Thread / Connection Specification | Body Hex | Material Grade |
|---|---|---|---|---|
| SS-5201L-06L | 06L | M12 x 1.5 (6 mm Tube) | 14 mm | AISI 316 Stainless |
| SS-5201L-08L | 08L | M14 x 1.5 (8 mm Tube) | 17 mm | AISI 316 Stainless |
| SS-5201L-10L | 10L | M16 x 1.5 (10 mm Tube) | 19 mm | AISI 316 Stainless |
| SS-5201L-12L | 12L | M18 x 1.5 (12 mm Tube) | 22 mm | AISI 316 Stainless |
| SS-5201L-15L | 15L | M22 x 1.5 (15 mm Tube) | 27 mm | AISI 316 Stainless |
| SS-5201L-18L | 18L | M26 x 1.5 (18 mm Tube) | 32 mm | AISI 316 Stainless |
| SS-5201L-22L | 22L | M30 x 2.0 (22 mm Tube) | 36 mm | AISI 316 Stainless |
| SS-5201L-28L | 28L | M36 x 2.0 (28 mm Tube) | 41 mm | AISI 316 Stainless |
Need non-standard dash sizes, custom tube drops, metric/imperial crossover ports, or special alloy grades (AISI 316Ti / Super Duplex 2507)? Delphi manufactures custom components to client blueprints.
Specific Applications & Hydraulic Circuit Routing
Part SS-5201L stainless steel fittings provide reliable fluid power conveyance in demanding mobile, marine, and process circuits:
- Marine, Subsea & Offshore Systems: Widely deployed on offshore drilling rigs, subsea control umbilicals, ROV hydraulic manifolds, and shipboard deck equipment exposed to constant saltwater spray.
- Chemical & Petrochemical Processing: Reliable fluid conveyance for corrosive process chemicals, hydrocarbon refining sampling lines, and chemical injection skids.
- Food, Beverage & Pharmaceutical Processing: Sanitary clean-in-place (CIP) hydraulic actuation and washdown food packaging lines where strict hygiene and rust prevention are mandated.
- High-Purity Gas & Severe Environment Fluid Power: Ensures zero corrosion degradation in semiconductor gas delivery lines, pulp and paper chlorine wash lines, and heavy coastal machinery.
Installation & Assembly Guidance
- Apply Anti-Seize Lubricant: Stainless steel threads are inherently susceptible to galling. Always apply a thin, uniform coating of stainless-compatible anti-seize or PTFE thread paste prior to assembly.
- Inspect Threads & Sealing Faces: Check that threads and sealing seats (flares, cones, or O-ring grooves) are completely clean, deburred, and free of microscopic grit or tooling marks.
- Hand-Start Carefully: Engage threads by hand for at least 2-3 full turns to verify smooth, concentric alignment and avoid cross-threading.
- Torque to Engineering Limits: Use calibrated wrenches to torque the connection to the specified torque value. Avoid excessive torque, which can accelerate thread galling or distort sealing faces.
Why Source Part SS-5201L from Delphi Fittings?
- Multi-Axis CNC Machining from 316 Barstock: Every Part SS-5201L is precision turned and milled from certified 316/316L stainless steel bar, ensuring exceptional dimensional repeatability and smooth surface finish.
- ASTM A967 Chemical Passivation: All stainless parts undergo validated nitric/citric acid passivation, eliminating surface free iron and forming an ultra-durable chromium oxide passive protective layer.
- 100% Go/No-Go Gauge & Optical Inspection: Threads are strictly verified using calibrated class 2A/2B and 6g/6H thread gauges and optical comparator vision inspection.
- Factory Direct OEM & Distributor Container Pricing: Direct factory supply with complete material test reports (MTR), full traceability, and custom private-label export packaging.
Get a Quote for Part SS-5201L - DIN Tube Nut Light Duty (316 Stainless Steel)
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 SS-5201L in marine, offshore, and corrosive fluid power circuits:
