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.

We'll See You At Satellite 2023!
Century Seals will be at this year's Satellite 2023 Conference & Exhibition - Washington, DC, March 14-16, 2023! Stop by and say hello to Jamie and Patrick at Booth #1957. We hope to see you there!
Happy Birthday to Century Seals!
While everyone was busy ringing in the New Year, Century Seals celebrated another milestone - our 23rd Birthday! Century Seals was officially "born" on January 1, 2000. To say it is a much ... [READ MORE]
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]
503 Harrington Street • P.O. Box 720 • Seaford, DE 19973 • (302) 629-0324 • Fax (302) 629-0325