.875" C/S (7/8") (22.23 MM)

Part number 0284875 is a black Buna-N (Nitrile) 70 Shore A O-Ring Cord Stock measuring a cross section of 0.875 in (22.23 mm). An o-ring cord stock eliminates long lead times on large-diameter custom rings.

This material stands up to propane and butane, petroleum-based oils, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, strong abrasion and tear resistance.

Maintenance and OEM teams specify it across fluid power, hydraulic and pneumatic systems, and construction equipment.

Order part number 0284875, sold by the foot. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.