APG stocks the H70FDA008, an AS568-008 white Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 0.176 in (4.47 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.316 in (8.03 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, reliable performance in both static and dynamic service. Expect good resistance to many alcohols, greases and lubricants, and propane and butane. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).
The compound meets FDA requirements for food contact under 21 CFR 177.2600. Maintenance and OEM teams specify it across general industrial maintenance, agricultural equipment, and fluid power.
Order part number H70FDA008, sold individually. Unit weight is approximately 0.0572 g and nominal inside diameter is listed as 3/16 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Description -008 WHITE BUNA 70D FDA O-RING
Actual Cross Section 0.07 inch (1.78 mm)
Actual Inside Diameter 0.176 inch (4.47 mm)
Actual Outside Diameter 0.316 inch (8.03 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable