-123 BLACK BUNA 70D O-RING

The H70123 is an AS568-123 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 1.174 in (29.82 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.38 in (35.05 mm). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Buna-N (Nitrile) is specified here for low compression set under sustained load and economical choice for high-volume maintenance programs. Expect good resistance to greases and lubricants, hydraulic fluids, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where automotive brake fluid or polar solvents are present.

Maintenance and OEM teams specify it across automotive, construction equipment, and fluid power.

Reference part number H70123 when ordering; the item is sold individually. Unit weight is approximately 0.684 g and nominal inside diameter is listed as 1 3/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.