RING (P/N s1628-329) - New Surplus

The s1628-329 is a backup ring for Cessna 172 nose strut seal stacks. This component supports the primary O-ring and resists extrusion under hydraulic pressure in the shock strut assembly. Installed during nose strut service as part of the seal stack, the backup ring maintains proper seal orientation and prevents O-ring failure during aircraft operation.

FAA-PMA replacements are available. Installation follows the aircraft maintenance manual and Illustrated Parts Catalog specifications for correct positioning within the strut seal assembly.

What is the RING (P/N s1628-329)?

The s1628-329 is a backup ring for Cessna 172 nose strut seal stacks. This component supports the primary O-ring and resists extrusion under hydraulic pressure in the shock strut assembly.

What conditions is the s1628-329 available in?

The s1628-329 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 s1628-329?

The s1628-329 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 s1628-329?

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.