Welcome to FOSDA Inc.

FOSDA Inc. is comprised of two companies: "O" Rings & Things is our hydraulic/pneumatic packing house, while S & D Specialty focuses on hydraulic repairs.

Please click on the company name at left for more information.

O Rings & Things

"O" Rings & Things is our hydraulic/pneumatic packing house which is open Monday through Friday, 7:30 AM to 5:00 PM, PST. Most seals, metric included, are readily available on our shelves. Ask about our free shipping!

S & D Specialty specializes in hydraulic repairs (cylinders, etc), and also handles pipefitting and welding. Our millwrights have many years of experience in an industrial atmosphere working with all aspects of heavy machinery and equipment.