The H70MD383 is an AS568-383 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 13.975 in (354.97 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 14.395 in (365.63 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, most widely specified general-purpose sealing elastomer. Expect good resistance to many alcohols, petroleum-based oils, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving ozone and direct sunlight or ketones call for a different compound.
The compound is metal detectable for HACCP and foreign-body control programs. You will find this material specified across construction equipment, agricultural equipment, and hydraulic and pneumatic systems.
Order part number H70MD383, sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Description -383 BLACK BUNA 70D O-RING
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 13.975 inch (354.97 mm)
Actual Outside Diameter 14.395 inch (365.63 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable