Part number H70MD037 is an AS568-037 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 2.489 in (63.22 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.629 in (66.78 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.
Buna-N (Nitrile) is valued for low compression set under sustained load and an economical choice for high-volume maintenance programs. It resists water, many alcohols, and hydraulic fluids. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or automotive brake fluid are present.
This o-ring is metal detectable for HACCP and foreign-body control programs. Common environments for this compound include fluid power, construction equipment, and agricultural equipment.
Order part number H70MD037, sold individually. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Description -037 BLACK BUNA 70D O-RING
Actual Cross Section 0.07 inch (1.78 mm)
Actual Inside Diameter 2.489 inch (63.22 mm)
Actual Outside Diameter 2.629 inch (66.78 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable