cBallast
Industrial Parts Catalog
Datasheet generated 2026-06-07
sales@cballast.com
cballast.com

Back-Up Ring PEEK AS568-328

Greene Tweed · Seals & Gaskets · Backup Rings · USA · gtweed.com
Part Number
GT-PEEK-328  ·  HS 4016.93
Back-Up Ring PEEK AS568-328

PEEK (polyetheretherketone) anti-extrusion ring. Higher creep resistance than PTFE at 250°C+. High-pressure downhole + aerospace service.

Technical Specifications

MaterialVictrex PEEK 450G
SizeAS568-328 / 50.17×5.33mm
Temperature-60 to +260°C
PartGT-PEEK-328

Properties

MaterialVictrex PEEK 450G
Temperature range-60 to +260°C
Standard sizeAS568-328 / 50.17×5.33mm
MOQ1

Compatibility

Downhole oil/gas tools, aerospace actuators, high-pressure valves above 500 bar.

Standards

Approvals