Permaswage D10021A-10 Bulkhead Fitting Union

The Permaswage® D10021A-10 Bulkhead Sealing Union is designed for use with 5/8-inch (size -10) tubing in 0–3,000 PSI aerospace hydraulic systems. This precision bulkhead-sealing union provides a permanent, leak-free tube connection through bulkheads, panels, and structural barriers while maintaining the integrity of the aircraft's hydraulic system. Engineered to provide a positive seal at the mounting surface, the D10021A-10 is ideal for installations requiring secure tube routing through airframe structures. Manufactured to stringent aerospace standards, it delivers exceptional strength, corrosion resistance, and long-term durability for commercial, military, and defense aircraft applications. The D10021A series is identified as the standard Bulkhead Sealing Union in the Permaswage® 3,000 PSI fitting catalog.

Condition and Warranty for New Surplus Fittings

This fitting is sold as a New Surplus item, meaning it is unused, in excellent condition, and manufactured to the original Permaswage® specifications. New surplus fittings are genuine OEM parts that were not purchased directly from the manufacturer and may exhibit minor cosmetic imperfections from storage or handling. These cosmetic conditions do not affect the fit, form, or function of the fitting.

As part of our quality assurance process, all new surplus fittings undergo a thorough visual inspection to verify part number, condition, and overall serviceability before shipment.

All new surplus fittings include a 90-day warranty covering defects in materials and workmanship under normal use. This warranty does not cover cosmetic imperfections, improper installation, misuse, modification, or damage resulting from improper handling or application.