Ordered as H70455, this is an AS568-455 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 12.975 in (329.57 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 13.525 in (343.54 mm). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.
Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, strong abrasion and tear resistance. It resists many alcohols, hydraulic fluids, and petroleum-based oils. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).
Maintenance and OEM teams specify it across agricultural equipment, fluid power, and hydraulic and pneumatic systems.
H70455 ships individually. Unit weight is approximately 49.81 g and nominal inside diameter is listed as 13 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Description -455 BLACK BUNA 70D O-RING
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 12.975 inch (329.57 mm)
Actual Outside Diameter 13.525 inch (343.54 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity