CAPLUG (P/N pde-6) - New Surplus

The pde-6 is a molded polymer protective plug for 3/8 inch flareless tube-and-nut assemblies with 9/16-18 thread. Designed to fit MS21921-style fittings, this cap seals hydraulic line ends against dust and moisture during storage, shipping, and maintenance operations. Installation requires only finger-tightening via the knurled grip, with removal following standard shop procedures.

Essential for protecting flareless fitting threads and sealing surfaces in aircraft hydraulic systems during non-operational periods.

What is the CAPLUG (P/N pde-6)?

The pde-6 is a molded polymer protective plug for 3/8 inch flareless tube-and-nut assemblies with 9/16-18 thread. Designed to fit MS21921-style fittings, this cap seals hydraulic line ends against dust and moisture during storage, shipping, and maintenance operations.

What conditions is the pde-6 available in?

The pde-6 is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.

How do I get pricing for the pde-6?

The pde-6 requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.

Do you offer expedited shipping for the pde-6?

Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.