Product Description
Backup Rings
- Size#330 = 2-1/8 ID x 2-1/2 OD x 3/16 CS
- Back-up rings are used in conjunction with O-ring for both static and dynamic sealing applications. They prevent extrusion of the O-ring when it is subjected to high pressures, or when the extrusion gaps are excessive. Wherever possible two Back-up rings should be used, one on each side of the O-ring.
- Color Black
- 90 Durometer hardness
Price is $0.36 each minimum purchase 5 pcs
