Century Seals is an ISO 9001:2015 Certified and ITAR Registered manufacturer of the highest quality hermetic glass to metal seals. With over 100 years of combined experience, we have the knowledge to serve you best.

Our Products: Miniature hermetic feedthroughs, Relay headers, DIP headers, TO packages, Machined Kovar packages for microwave applications, custom parts to meet specifications, and many others. See the products tab for pictures.  

Product Applications: Aerospace, Defense, Industrial, RF Microwave, Semiconductors, Telecommunications, Refrigeration, and a wide variety of specialty manufacturers.

Don't See What You're Looking For? Let us build it for you! We offer custom solutions to help your company meet its goals. Email us at sales@centuryseals.com or call us to get started.


Have we let you down or not met your expectations? Let us know via this customer complaint form.

Hiring! Salisbury, MD - Plating Laboratory Tech
Fin-Tec, a wholly owned subsidiary of Century Seals located in Salisbury, MD, is looking for a Plating Laboratory Technician. Great benefits, weekdays only, competitive pay! Click the "Human Resources ... [READ MORE]
Century Seals Holiday Shutdown Schedule
Century Seals Holiday Schedule will be as follows:

Closed Thursday November 24 and Friday November 25. Reopen Monday November 28.

Christmas & New Year ... [READ MORE]
Thank You First Responders!
On the morning of Wednesday October 12, 2022, a building directly adjacent to the Century Seals facility caught fire and burned to the ground. Out of an abundance of caution and for the safety of our ... [READ MORE]
503 Harrington Street • P.O. Box 720 • Seaford, DE 19973 • (302) 629-0324 • Fax (302) 629-0325