*1.995 X 2.223 X 0.054 PTFE SPLIT B/U

This PTFE 55D Backup Ring, item TST1.995X2.223X.054, is designed for buyers who need a clear specification match for anti-extrusion support behind O-rings in high-pressure hydraulic and pneumatic glands. The item is specified by 2.22 mm (0.087 inch) ID x 2 mm (0.079 inch) CS; 6.22 mm (0.24 inch) OD, giving buyers a clear dimensional reference for matching the seal to the groove, shaft or bore. Its PTFE material provides chemical resistance, low friction and low surface energy in demanding static sealing applications. It is with a listed temperature range of -65°F (-53.9°C) to 500°F (260°C), which can help narrow material selection for heat, cold or process exposure. The white color and round profile provide a practical visual identifier during receiving, stocking and installation. As a backup ring, it works with a primary O-ring to help limit extrusion into clearance gaps under pressure. The each-unit format supports precise replacement, kitting, resale and job-specific purchasing. Common purchasing identifiers for this product include the material name, O-ring type, dimensional size, hardness and intended sealing application. Those attributes make the item easier to compare for maintenance, OEM production, MRO replacement and reseller catalog use.